The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-050-3450, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-050-3450 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.469 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC NUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | FIBER LOCKING INSERT |
| Material | STEEL COMP 1213 OR STEEL COMP 1115 OR STEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 NUT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12-21818 | 5/9 Secondary reference General Equipment Co |
| 8630-29-13F2 | 3/2 Design control — primary reference U.S. Government activity |
| 503450 | 5/9 Secondary reference CAGE 00000 |
| 8630-29-13F2 | 5/9 Secondary reference Highway Products Inc |
NSN 5310-00-050-3450 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5960-00-963-1285, 2825-01-006-6172, 5342-01-127-9514. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-050-3450: Width Across Flats: 1.250 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: QQ-S-633 FED SPEC ALL MATERIAL RESPONSES NUT; Thread Direction: RIGHT-HAND. 12 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.