The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-333-5502, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-333-5502 |
| Primary Part Number | 803-5959303-X-12 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | ASTM B348 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.625 INCHES IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 11 |
| Material | TITANIUM ALLOY UNS R56400 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 |
|---|---|
| 803-5959303-X-12 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5959303-12 | 5/9 Secondary reference U.S. Government activity |
| 524-6603688-VHBA-16 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-333-5502 is a Nut,plain,hexagon, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-333-5502 has 1 manufacturer part number on file: 803-5959303-X-12 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-421-4733. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5959303-X-12: Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: ASTM B348 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Size: 0.625 INCHES IN; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 6 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.