The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-044-3340, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-044-3340 |
| Primary Part Number | 8712289 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | CANCELLED |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.438 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8712289 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 8712289 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 8712289 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0705789 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 165-067 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5310000443340 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5310009575071 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 443340 | 5/9 Secondary reference General Motors Corp |
| UTA1220 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8712289 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5310-00-044-3340 is a Nut,self-Locking,hexagon, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-044-3340 has 3 manufacturer part numbers on file: 8712289 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 8712289 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 8712289 (Amz Alabama Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5310-00-840-6222, 5995-01-319-0451, 6550-01-368-8172. Verify interchangeability with system specifications before substitution.
Key specifications for 8712289: Width Across Flats: 0.750 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5310-00-044-3340 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.