The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-001-8167, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-001-8167 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Material Document and Classification | MIL-M-20693 MIL SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 0.579 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL EXCEPT INSERT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 13 |
| Material | STEEL CORROSION RESISTING OVERALL EXCEPT INSERT |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Bearing Surface Type | CHAMFERED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| 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 |
|---|---|
| 258E391PC23 | 3/1 Design control — primary reference Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory |
| SR A4 1/2 UNC | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 79NE083 | 5/9 Secondary reference Harvard Industries Inc |
| 590-363 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 79NE083 | 5/1 Secondary reference Esna, Llc |
NSN 5310-00-001-8167 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5315-00-059-0363, 5310-01-352-4797, 5310-01-382-3162. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-001-8167: Width Across Flats: 0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT; Thread Series: UNIFIED NATIONAL COARSE (UNC); Special Test Features: SPECIAL QUALITY CONTROL TESTING. 19 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.