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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Nuts, Materials, and Finishes
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Mil. Spec. 18-8 Stainless Steel Thin Hex Nuts
Choose these nuts for their adherence to strict military standards for material and construction. Made of 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| 1/4"-20 | 7/16" | 5/32" | Fed. Spec. FF-N-836, MS35691-3 | 5 | 000000000 | 000000 |
| 1/4"-28 | 7/16" | 5/32" | Fed. Spec. FF-N-836, MS35691-7 | 1 | 000000000 | 0000 |
| 5/16"-18 | 1/2" | 3/16" | Fed. Spec. FF-N-836, MS35691-11 | 5 | 000000000 | 00000 |
| 5/16"-24 | 1/2" | 3/16" | Fed. Spec. FF-N-836, MS35691-15 | 5 | 000000000 | 00000 |
| 3/8"-16 | 9/16" | 7/32" | Fed. Spec. FF-N-836, MS35691-19 | 1 | 000000000 | 0000 |
| 3/8"-24 | 9/16" | 7/32" | Fed. Spec. FF-N-836, MS35691-23 | 1 | 000000000 | 0000 |
| 7/16"-14 | 11/16" | 1/4" | Fed. Spec. FF-N-836, MS35691-27 | 1 | 000000000 | 0000 |
| 7/16"-20 | 11/16" | 1/4" | Fed. Spec. FF-N-836, MS35691-31 | 1 | 000000000 | 0000 |
| 1/2"-13 | 3/4" | 5/16" | Fed. Spec. FF-N-836, MS35691-35 | 1 | 000000000 | 0000 |
| 1/2"-20 | 3/4" | 5/16" | Fed. Spec. FF-N-836, MS35691-39 | 1 | 000000000 | 0000 |
| 5/8"-11 | 15/16" | 3/8" | Fed. Spec. FF-N-836, MS35691-51 | 1 | 000000000 | 00000 |
| 5/8"-18 | 15/16" | 3/8" | Fed. Spec. FF-N-836, MS35691-55 | 1 | 000000000 | 00000 |
Mil. Spec. Low-Strength Steel Thin Nylon-Insert Locknuts
Choose these locknuts for their adherence to strict military standards for material and construction. About half the height of standard nylon-insert locknuts, use them in light duty low-clearance applications or jam one against a hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. A cadmium yellow-chromate plating provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
Cadmium Yellow-Chromate Plated Steel | |||||||
|---|---|---|---|---|---|---|---|
| 4-40 | 1/4" | 1/8" | 250° | MS21083N04, NASM21083 | 10 | 000000000 | 000000 |
| 6-32 | 5/16" | 9/64" | 250° | MS21083N06, NASM21083 | 10 | 000000000 | 00000 |
| 8-32 | 11/32" | 3/16" | 250° | MS21083N08, NASM21083 | 10 | 000000000 | 0000 |
| 10-32 | 3/8" | 3/16" | 250° | MS21083N3, NASM21083 | 10 | 000000000 | 0000 |
| 1/4"-28 | 7/16" | 7/32" | 250° | MS21083N4, NASM21083 | 10 | 000000000 | 0000 |
| 1/2"-20 | 3/4" | 5/16" | 250° | MS21083N8, NASM21083 | 1 | 000000000 | 0000 |