The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-674-3255, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-674-3255 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Locking Feature | CENTERLOCK OR DISTORTED THREAD TOPLOCK OR DOWEL PIN OR FREE-RUNNING ALL METAL DESIGN OR NYLON INSERT OR PREVAILING TORQUE OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE ALL NONMETALLIC DESIGN OR PREVAILING TORQUE WITH METALLIC INSERT OR PREVAILING TORQUE WITH NONMETALLIC INSERT OR SELF-LOCKING OR TOP LOCK |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR FLAT 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 | X |
| Reference | Meaning |
|---|---|
| PL6.0 SLV-5 | D/9 Drawing number reference only U.S. Government activity |
| 204-15-106 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-674-3255 is a Nut,self-Locking,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-674-3255: Thread Direction: RIGHT-HAND; Locking Feature: CENTERLOCK OR DISTORTED THREAD TOPLOCK OR DOWEL PIN OR FREE-RUNNING ALL METAL DESIGN OR NYLON INSERT OR PREVAILING TORQUE OR PREVAILING TORQUE ALL METAL DESIGN OR PREVAILING TORQUE ALL NONMETALLIC DESIGN OR PREVAILING TORQUE WITH METALLIC INSERT OR PREVAILING TORQUE WITH NONMETALLIC INSERT OR SELF-LOCKING OR TOP LOCK; Special Features: MATERIAL FF-B-171; Part Name Assigned by Controlling Agency: LOCKNUT. 4 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.