The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-274-5665, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-274-5665 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.741 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Temp Rating | 250.0 FAHRENHEIT NOMINAL DEGF |
| Criticality Code Justification | ZZZW |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Specification/standard Data | 81349-MIL-I-45208 GOVERNMENT SPECIFICATION AND 96906-MIL-STD-105 GOVERNMENT STANDARD AND 96906-MS17828 GOVERNMENT STANDARD AND 81349-MIL-N-24106 GOVERNMENT SPECIFICATION AND 96906-MIL-STD-129 GOVERNMENT STANDARD AND 81349-MIL-P-23199 GOVERNMENT SPECIFICATION AND 96906-MIL-STD-2132 GOVERNMENT STANDARD AND 96906-MIL-STD-767 GOVERNMENT STANDARD |
| Departure From Cited Document | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Nut Height | 0.575 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY AND COPPER ALLOY OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| MS17828-8FMOD | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-274-5665 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-274-5665: Width Across Flats: 0.741 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Thread Series: UNF; Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Criticality Code Justification: ZZZW. 14 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.