The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-288-5690, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kirby - Smith Machinery, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Kirby - Smith Machinery, Inc. (CAGE 0BAH3); Government Contracts, Llc (CAGE 39NG2) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-288-5690 |
| Primary Part Number | 6731-81-8160 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kirby - Smith Machinery, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 6731-81-8160 PRIMARY | Kirby - Smith Machinery, Inc. (USA) |
| 359640200 PRIMARY | Government Contracts, Llc (USA) |
| Reference | Meaning |
|---|---|
| CBU1677 | 5/9 Secondary reference Leyland Trucks Ltd (for Spare Parts See U6425) |
| 2EL954 | 5/9 Secondary reference Oshkosh Corp |
| 3503562 | 5/9 Secondary reference Cummins Inc. |
| 3503562 | 5/9 Secondary reference Holset Engineering Co Ltd |
| 3503562 | 3/9 Design control — primary reference Cummins Engine Co Inc Diesel Recon Co Div |
| 5310PL0823073 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-288-5690 is a Nut,self-Locking,hexagon, manufactured by Kirby - Smith Machinery, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-288-5690 has 2 manufacturer part numbers on file: 6731-81-8160 (Kirby - Smith Machinery, Inc.), 359640200 (Government Contracts, Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.