The Nut,plain,round, cataloged under National Stock Number 5310-00-901-0273, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-901-0273 |
| Primary Part Number | 2159509 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Width Across Flats | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Nut Diameter | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Nut Thickness | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | COPPER ALLOY 464 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2159509 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5310-00-901-0273 is a Nut,plain,round, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-901-0273 has 1 manufacturer part number on file: 2159509 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-579-6025. Verify interchangeability with system specifications before substitution.
Key specifications for 2159509: Width Across Flats: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.
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.