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 | Flat |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell B70 | MS15795-812; NASM15795; ASME B18.21.1 | 25 | 000000000 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 |
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 | 00000 |
| No. 2 | 0.094" | 0.218" | 0.018"-0.022" | Rockwell B68 | MS15795-844B; NASM15795 | 100 | 000000000 | 00000 |
| 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 | 00000 |
| No. 8 | 0.188" | 0.375" | 0.036"-0.065" | Rockwell B68 | MS15795-807B; NASM15795 | 100 | 000000000 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| No. 10 | 0.203" | 1.062" | 0.017"-0.023" | Rockwell B68 | MS15795-850B; NASM15795 | 10 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.438" | 0.036"-0.065" | Rockwell B68 | MS15795-808B; NASM15795 | 100 | 000000000 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |