The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-181-0650, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Injection Et Regulation Marine (CAGE FA3E7); Woodward, Inc. (CAGE 31361) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-181-0650 |
| Primary Part Number | 1131-953 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Woodward, 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 |
|---|---|
| 1131953 | Injection Et Regulation Marine (FRA) |
| 1131-953 PRIMARY | Woodward, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1131-943 | 5/9 Secondary reference Woodward, Inc. |
| 1001070038 | C/1 Advisory reference — outside the item-of-supply concept Riimic, Llc Dba Sunair Electronics |
NSN 5310-01-181-0650 is a Nut,self-Locking,hexagon, manufactured by Woodward, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-0650 has 2 manufacturer part numbers on file: 1131953 (Injection Et Regulation Marine), 1131-953 (Woodward, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-561-2237. Verify interchangeability with system specifications before substitution.
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.