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Washer Type Washer Type |
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| Flat | Split Lock |
Specifications Met Specifications Met |
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Thickness Thickness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Tensile Strength Tensile Strength |
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About Washers
More
Mil. Spec. Washers
Choose these washers for their adherence to strict military standards for material and construction.
18-8 stainless steel and 321 stainless steel washers have excellent corrosion resistance in most environments. They may be mildly magnetic. Passivated 18-8 stainless steel washers have added protection against oxidation and corrosion. Black-oxide 18-8 stainless steel washers have a matte-black finish.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
MS15795/NASM15795 | ||||||||
| No. 1 | 0.078" | 0.188" | 0.016"-0.025" | Rockwell B70 | MS15795-801; NASM15795 | 500 | 000000000 | 000000 |
| No. 2 | 0.094" | 0.250" | 0.016"-0.025" | Rockwell B70 | MS15795-802; NASM15795; ASME B18.21.1 | 500 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.250" | 0.017"-0.028" | Rockwell B70 | MS15795-803; NASM15795 | 500 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Rockwell B70 | MS15795-804; NASM15795; ASME B18.21.1 | 500 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.312" | 0.027"-0.048" | Rockwell B70 | MS15795-805; NASM15795 | 250 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Rockwell B70 | MS15795-806; NASM15795; ASME B18.21.1 | 250 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.375" | 0.036"-0.065" | Rockwell B70 | MS15795-807; NASM15795 | 250 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Rockwell B70 | MS15795-841; NASM15795; ASME B18.21.1 | 125 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.438" | 0.036"-0.065" | Rockwell B70 | MS15795-808; NASM15795 | 250 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Rockwell B70 | MS15795-842; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Rockwell B70 | MS15795-809; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell B70 | MS15795-810; NASM15795; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.734" | 0.051"-0.080" | Rockwell B70 | MS15795-811; NASM15795; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell B70 | MS15795-812; NASM15795; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell B70 | MS15795-813; NASM15795 | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell B70 | MS15795-814; NASM15795; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell B70 | MS15795-815; NASM15795; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Rockwell B70 | MS15795-816; NASM15795; ASME B18.21.1 | 25 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Rockwell B70 | MS15795-817; NASM15795; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell B70 | MS15795-818; NASM15795; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell B70 | MS15795-819; NASM15795; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Rockwell B70 | MS15795-820; NASM15795; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Rockwell B70 | MS15795-821; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell B70 | MS15795-822; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Rockwell B70 | MS15795-823; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Rockwell B70 | MS15795-824; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Rockwell B70 | MS15795-825; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Rockwell B70 | MS15795-826; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Rockwell B70 | MS15795-827; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
MS14151 | ||||||||
| No. 5 | 0.154" | 0.490" | 0.017"-0.023" | Rockwell B68 | MS14151-1 | 100 | 000000000 | 0000 |
| No. 6 | 0.187" | 0.560" | 0.017"-0.023" | Rockwell B68 | MS14151-6 | 100 | 000000000 | 0000 |
| No. 8 | 0.209" | 0.620" | 0.017"-0.023" | Rockwell B68 | MS14151-2 | 100 | 000000000 | 00000 |
| 1/4" | 0.275" | 1.090" | 0.017"-0.023" | Rockwell B68 | MS14151-3 | 50 | 000000000 | 00000 |
| 5/16" | 0.338" | 1.090" | 0.017"-0.023" | Rockwell B68 | MS14151-4 | 50 | 000000000 | 00000 |
| 3/8" | 0.400" | 1.090" | 0.017"-0.023" | Rockwell B68 | MS14151-5 | 50 | 000000000 | 00000 |
MS51496 | ||||||||
| No. 0 | 0.068" | 0.130" | 0.022"-0.028" | Rockwell C20 | MS51496-P61 | 25 | 000000000 | 00000 |
| No. 0 | 0.068" | 0.161" | 0.013"-0.019" | Rockwell C20 | MS51496-P62 | 25 | 000000000 | 00000 |
| No. 2 | 0.099" | 0.140" | 0.010"-0.013" | Rockwell C20 | MS51496-P79 | 25 | 000000000 | 00000 |
| No. 2 | 0.099" | 0.161" | 0.022"-0.028" | Rockwell C20 | MS51496-P63 | 25 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.219" | 0.022"-0.028" | Rockwell C20 | MS51496-P64 | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.180" | 0.013"-0.019" | Rockwell C20 | MS51496-P80 | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.180" | 0.029"-0.032" | Rockwell C20 | MS51496-P65 | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.255" | 0.013"-0.019" | Rockwell C20 | MS51496-P66 | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.255" | 0.028"-0.036" | Rockwell C20 | MS51496-P67 | 10 | 000000000 | 0000 |
| No. 5 | 0.156" | 0.284" | 0.013"-0.019" | Rockwell C20 | MS51496-P68 | 10 | 000000000 | 0000 |
| No. 5 | 0.156" | 0.284" | 0.029"-0.035" | Rockwell C20 | MS51496-P69 | 10 | 000000000 | 0000 |
| No. 6 | 0.176" | 0.284" | 0.029"-0.035" | Rockwell C20 | MS51496-P70 | 10 | 000000000 | 0000 |
| No. 8 | 0.199" | 0.315" | 0.029"-0.032" | Rockwell C20 | MS51496-P71 | 10 | 000000000 | 0000 |
| No. 10 | 0.210" | 0.365" | 0.029"-0.032" | Rockwell C20 | MS51496-P73 | 10 | 000000000 | 0000 |
| No. 10 | 0.220" | 0.400" | 0.040"-0.050" | Rockwell C20 | MS51496-P82 | 10 | 000000000 | 0000 |
| 1/4" | 0.270" | 0.460" | 0.029"-0.032" | Rockwell C20 | MS51496-P75 | 10 | 000000000 | 00000 |
| 1/4" | 0.280" | 0.375" | 0.022"-0.028" | Rockwell C20 | MS51496-P84 | 10 | 000000000 | 0000 |
| 1/4" | 0.288" | 0.440" | 0.029"-0.032" | Rockwell C20 | MS51496-P77 | 10 | 000000000 | 00000 |
| 1/4" | 0.317" | 0.525" | 0.029"-0.032" | Rockwell C20 | MS51496-P78 | 5 | 000000000 | 0000 |
| 3/8" | 0.421" | 0.630" | 0.045"-0.055" | Rockwell C20 | MS51496-P85 | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.062" | 0.040"-0.050" | Rockwell C20 | MS51496-P86 | 1 | 000000000 | 0000 |
| 3/4" | 0.813" | 1.125" | 0.013"-0.019" | Rockwell C20 | MS51496-P87 | 1 | 000000000 | 0000 |
MS16212 | ||||||||
| 1/4" | 0.322" | 0.760" | 0.051"-0.080" | Rockwell B68 | MS16212-11 | 50 | 000000000 | 00000 |
| 5/16" | 0.385" | 0.760" | 0.051"-0.080" | Rockwell B68 | MS16212-12 | 50 | 000000000 | 00000 |
| 3/8" | 0.447" | 0.885" | 0.064"-0.104" | Rockwell B68 | MS16212-13 | 25 | 000000000 | 0000 |
| 1/2" | 0.572" | 1.260" | 0.086"-0.132" | Rockwell B68 | MS16212-14 | 10 | 000000000 | 00000 |
| 5/8" | 0.697" | 1.510" | 0.108"-0.160" | Rockwell B68 | MS16212-15 | 5 | 000000000 | 00000 |
| 3/4" | 0.822" | 1.760" | 0.122"-0.177" | Rockwell B68 | MS16212-16 | 5 | 000000000 | 00000 |
NAS1149 | ||||||||
| No. 2 | 0.099" | 0.250" | 0.014"-0.018" | Rockwell C25 | NAS1149-CN216R | 500 | 000000000 | 0000 |
| No. 2 | 0.099" | 0.250" | 0.028"-0.036" | Rockwell B70 | NAS1149-CN232R | 500 | 000000000 | 00000 |
| No. 3 | 0.105" | 0.250" | 0.014"-0.018" | Rockwell C25 | NAS1149-CN316R | 500 | 000000000 | 00000 |
| No. 3 | 0.105" | 0.250" | 0.028"-0.036" | Rockwell B70 | NAS1149-CN332R | 500 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.014"-0.018" | Rockwell C25 | NAS1149-CN416R | 500 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.028"-0.036" | Rockwell B70 | NAS1149-CN432R; ASME B18.21.1 | 500 | 000000000 | 00000 |
| No. 6 | 0.149" | 0.375" | 0.014"-0.018" | Rockwell C25 | NAS1149-CN616R | 500 | 000000000 | 00000 |
| No. 6 | 0.149" | 0.375" | 0.028"-0.036" | Rockwell B70 | NAS1149-CN632R | 500 | 000000000 | 00000 |
| No. 8 | 0.174" | 0.375" | 0.014"-0.018" | Rockwell C25 | NAS1149-CN816R | 500 | 000000000 | 00000 |
| No. 8 | 0.174" | 0.375" | 0.028"-0.036" | Rockwell B70 | NAS1149-CN832R | 500 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0332R | 250 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.438" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0363R | 250 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.500" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0432R | 250 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.500" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0463R | 100 | 000000000 | 0000 |
| 5/16" | 0.328" | 0.562" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0532R | 100 | 000000000 | 0000 |
| 5/16" | 0.328" | 0.562" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0563R | 100 | 000000000 | 00000 |
| 3/8" | 0.390" | 0.625" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0632R | 100 | 000000000 | 0000 |
| 3/8" | 0.390" | 0.625" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0663R | 100 | 000000000 | 00000 |
| 7/16" | 0.453" | 0.750" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0732R | 100 | 000000000 | 00000 |
| 7/16" | 0.453" | 0.750" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0763R | 25 | 000000000 | 0000 |
| 1/2" | 0.515" | 0.875" | 0.028"-0.036" | Rockwell B70 | NAS1149-C0832R | 100 | 000000000 | 00000 |
| 1/2" | 0.515" | 0.875" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0863R | 50 | 000000000 | 00000 |
| 9/16" | 0.578" | 1.062" | 0.057"-0.069" | Rockwell B70 | NAS1149-C0963R | 25 | 000000000 | 00000 |
| 5/8" | 0.640" | 1.188" | 0.057"-0.069" | Rockwell B70 | NAS1149-C1063R | 25 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.312" | 0.082"-0.098" | Rockwell B70 | NAS1149-C1290R | 10 | 000000000 | 00000 |
| 7/8" | 0.890" | 1.500" | 0.082"-0.098" | Rockwell B70 | NAS1149-C1490R | 10 | 000000000 | 00000 |
| 1" | 1.015" | 1.750" | 0.082"-0.098" | Rockwell B70 | NAS1149-C1690R | 5 | 000000000 | 0000 |
NAS620 | ||||||||
| No. 0 | 0.063" | 0.099" | 0.015"-0.018" | Rockwell B70 | NAS620C0 | 250 | 000000000 | 00000 |
| No. 2 | 0.089" | 0.149" | 0.015"-0.018" | Rockwell B70 | NAS620C2 | 500 | 000000000 | 00000 |
| No. 3 | 0.102" | 0.180" | 0.015"-0.018" | Rockwell B70 | NAS620C3L | 500 | 000000000 | 00000 |
| No. 3 | 0.102" | 0.180" | 0.030"-0.034" | Rockwell B70 | NAS620C3 | 500 | 000000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.015"-0.018" | Rockwell B70 | NAS620C4L | 500 | 000000000 | 00000 |
| No. 4 | 0.115" | 0.209" | 0.030"-0.034" | Rockwell B70 | NAS620C4 | 500 | 000000000 | 00000 |
| No. 5 | 0.128" | 0.238" | 0.015"-0.018" | Rockwell B70 | NAS620C5L | 500 | 000000000 | 00000 |
| No. 5 | 0.128" | 0.238" | 0.030"-0.034" | Rockwell B70 | NAS620C5 | 250 | 000000000 | 0000 |
| No. 6 | 0.143" | 0.267" | 0.015"-0.018" | Rockwell B70 | NAS620C6L | 250 | 000000000 | 0000 |
| No. 6 | 0.143" | 0.267" | 0.030"-0.034" | Rockwell B70 | NAS620C6 | 250 | 000000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.015"-0.018" | Rockwell B70 | NAS620C8L | 250 | 000000000 | 00000 |
| No. 8 | 0.169" | 0.304" | 0.030"-0.034" | Rockwell B70 | NAS620C8 | 250 | 000000000 | 00000 |
| No. 10 | 0.195" | 0.354" | 0.030"-0.034" | Rockwell B70 | NAS620C10L | 250 | 000000000 | 00000 |
| No. 10 | 0.195" | 0.354" | 0.060"-0.066" | Rockwell B70 | NAS620C10 | 100 | 000000000 | 00000 |
| 1/4" | 0.255" | 0.468" | 0.030"-0.034" | Rockwell B70 | NAS620C416L | 100 | 000000000 | 0000 |
| 1/4" | 0.255" | 0.468" | 0.060"-0.066" | Rockwell B70 | NAS620C416 | 100 | 000000000 | 00000 |
Passivated Black-Oxide 18-8 Stainless Steel | ||||||||
MS15795/NASM15795 | ||||||||
| No. 1 | 0.078" | 0.188" | 0.016"-0.025" | Rockwell B68 | MS15795-801B; NASM15795 | 100 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.218" | 0.018"-0.022" | Rockwell B68 | MS15795-844B; NASM15795 | 100 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.250" | 0.016"-0.025" | Rockwell B68 | MS15795-802B; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.250" | 0.017"-0.028" | Rockwell B68 | MS15795-803B; NASM15795 | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Rockwell B68 | MS15795-804B; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.312" | 0.027"-0.048" | Rockwell B68 | MS15795-805B; NASM15795 | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Rockwell B68 | MS15795-806B; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 6 | 0.172" | 0.281" | 0.029"-0.039" | Rockwell B68 | MS15795-845B; NASM15795 | 100 | 000000000 | 00000 |
| No. 6 | 0.172" | 0.312" | 0.029"-0.039" | Rockwell B68 | MS15795-856B; NASM15795 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.375" | 0.036"-0.065" | Rockwell B68 | MS15795-807B; NASM15795 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Rockwell B68 | MS15795-841B; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.375" | 0.019"-0.021" | Rockwell B68 | MS15795-846B; NASM15795 | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.562" | 0.029"-0.035" | Rockwell B68 | MS15795-847B; NASM15795 | 100 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.562" | 0.057"-0.069" | Rockwell B68 | MS15795-848B; NASM15795 | 50 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.625" | 0.035"-0.045" | Rockwell B68 | MS15795-849B; NASM15795 | 50 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.734" | 0.025"-0.045" | Rockwell B68 | MS15795-857B; NASM15795 | 50 | 000000000 | 0000 |
| No. 10 | 0.203" | 1.062" | 0.017"-0.023" | Rockwell B68 | MS15795-850B; NASM15795 | 10 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.438" | 0.036"-0.065" | Rockwell B68 | MS15795-808B; NASM15795 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Rockwell B68 | MS15795-842B; NASM15795; ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/4" | 0.250" | 0.562" | 0.051"-0.080" | Rockwell B68 | MS15795-809B; NASM15795 | 100 | 000000000 | 00000 |
| 1/4" | 0.250" | 0.688" | 0.065"-0.075" | Rockwell B68 | MS15795-851B; NASM15795 | 25 | 000000000 | 00000 |
| 1/4" | 0.266" | 0.458" | 0.028"-0.046" | Rockwell B68 | MS15795-858B; NASM15795 | 100 | 000000000 | 00000 |
| 1/4" | 0.266" | 0.625" | 0.026"-0.036" | Rockwell B68 | MS15795-852B; NASM15795 | 100 | 000000000 | 00000 |
| 1/4" | 0.266" | 0.688" | 0.046"-0.054" | Rockwell B68 | MS15795-853B; NASM15795 | 50 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell B68 | MS15795-810B; NASM15795; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 1/4" | 0.296" | 0.438" | 0.029"-0.035" | Rockwell B68 | MS15795-854B; NASM15795 | 100 | 000000000 | 0000 |
| 5/16" | 0.312" | 0.734" | 0.051"-0.080" | Rockwell B68 | MS15795-811B; NASM15795 | 50 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell B68 | MS15795-812B; NASM15795; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 3/8" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell B68 | MS15795-813B; NASM15795 | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell B68 | MS15795-814B; NASM15795; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 7/16" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell B68 | MS15795-815B; NASM15795 | 25 | 000000000 | 00000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Rockwell B68 | MS15795-816B; NASM15795; ASME B18.21.1 | 25 | 000000000 | 00000 |
| 1/2" | 0.500" | 1.250" | 0.064"-0.104" | Rockwell B68 | MS15795-817B; NASM15795 | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell B68 | MS15795-818B; NASM15795; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.250" | 0.090"-0.112" | Rockwell B68 | MS15795-855B; NASM15795 | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell B68 | MS15795-819B; NASM15795; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.469" | 0.090"-0.112" | Rockwell B68 | MS15795-843B; NASM15795 | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Rockwell B68 | MS15795-820B; NASM15795; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell B68 | MS15795-822B; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Rockwell B68 | MS15795-823B; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Rockwell B68 | MS15795-824B; NASM15795; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Rockwell B68 | MS15795-825B; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Rockwell B68 | MS15795-826B; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Rockwell B68 | MS15795-827B; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Rockwell B68 | MS15795-828B; NASM15795; ASME B18.21.1 | 1 | 000000000 | 0000 |
Mil. Spec. Split Lock Washers
Choose these washers for their adherence to strict military standards for material and construction. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 stainless steel washers have excellent corrosion resistance in most environments. They may be mildly magnetic.
Passivated stainless steel washers have added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
MS35338 | ||||||||
| No. 2 | 0.094" | 0.172" | 0.020" | Rockwell C35 | ASME B18.21.1; MS35338-134 | 100 | 000000000 | 00000 |
| No. 4 | 0.120" | 0.209" | 0.025" | Rockwell C35 | ASME B18.21.1; MS35338-135 | 100 | 000000000 | 0000 |
| No. 6 | 0.148" | 0.250" | 0.031" | Rockwell C35 | ASME B18.21.1; MS35338-136 | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1; MS35338-137 | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.334" | 0.047" | Rockwell C35 | ASME B18.21.1; MS35338-138 | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.487" | 0.062" | Rockwell C35 | ASME B18.21.1; MS35338-139 | 50 | 000000000 | 0000 |
Passivated 18-8 Stainless Steel | ||||||||
MS35338 | ||||||||
| 5/16" | 0.322" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1; MS35338-140 | 25 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.680" | 0.094" | Rockwell C35 | ASME B18.21.1; MS35338-141 | 25 | 000000000 | 0000 |
| 7/16" | 0.440" | 0.776" | 0.109" | Rockwell C35 | ASME B18.21.1; MS35338-142 | 10 | 000000000 | 0000 |
| 1/2" | 0.512" | 0.869" | 0.125" | Rockwell C35 | ASME B18.21.1; MS35338-143 | 10 | 000000000 | 0000 |
| 9/16" | 0.564" | 0.965" | 0.141" | Rockwell C35 | ASME B18.21.1; MS35338-144 | 10 | 000000000 | 0000 |
| 5/8" | 0.641" | 1.072" | 0.156" | Rockwell C35 | ASME B18.21.1; MS35338-145 | 10 | 000000000 | 00000 |
| 3/4" | 0.766" | 1.264" | 0.188" | Rockwell C35 | ASME B18.21.1; MS35338-146 | 5 | 000000000 | 00000 |
| 1" | 1.003" | 1.656" | 0.250" | Rockwell C35 | ASME B18.21.1; MS35338-148 | 2 | 000000000 | 0000 |
| 1 1/4" | 1.254" | 2.036" | 0.312" | Rockwell C35 | ASME B18.21.1; MS35338-150 | 1 | 000000000 | 0000 |
| 1 1/8" | 1.129" | 1.847" | 0.281" | Rockwell C35 | ASME B18.21.1; MS35338-149 | 1 | 000000000 | 0000 |
316 Stainless Steel Unthreaded Spacers
These spacers have excellent corrosion resistance and are passivated for enhanced protection. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Each | ||||||
|---|---|---|---|---|---|---|
| Lg. | For Screw Size | ID | Specifications Met | 1-9 | 10-Up | |
1/4" OD | ||||||
| 1/16" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/16" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/4" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 5/16" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 7/16" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/2" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 5/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/4" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 7/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/4" | No. 8 | 0.166" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 3/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/2" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 5/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/4" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 7/8" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | No. 8 | 0.166" | ASTM A276 | 000000000 | 00000 | 00000 |
3/8" OD | ||||||
| 1/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/16" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/4" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 5/16" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 7/16" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/2" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 5/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/4" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 7/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/4" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 3/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/2" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 5/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 3/4" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 7/8" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
| 2" | No. 10 | 0.192" | ASTM A276 | 000000000 | 0000 | 0000 |
1/2" OD | ||||||
| 1/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1/2" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 5/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 3/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 7/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1" | 1/4" | 0.252" | ASTM A276 | 000000000 | 0000 | 0000 |
| 1 1/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 1/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 3/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 1/2" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 5/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 3/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 0000 |
| 1 7/8" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/2" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 3/4" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3" | 1/4" | 0.252" | ASTM A276 | 000000000 | 00000 | 00000 |
3/4" OD | ||||||
| 1/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1/2" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 5/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 7/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/2" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 5/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 7/8" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/2" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 3/4" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3" | 3/8" | 0.380" | ASTM A276 | 000000000 | 00000 | 00000 |
1" OD | ||||||
| 1/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1/2" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 5/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 7/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/2" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 5/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 7/8" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/2" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 3/4" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3" | 1/2" | 0.505" | ASTM A276 | 000000000 | 00000 | 00000 |
2" OD | ||||||
| 1/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3" | 1" | 1.000" | ASTM A276 | 000000000 | 000000 | 00000 |
3" OD | ||||||
| 1/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 1 3/4" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 2 1/2" | 1" | 1.000" | ASTM A276 | 000000000 | 00000 | 00000 |
| 3" | 1" | 1.000" | ASTM A276 | 000000000 | 000000 | 00000 |