The Nut,self-Locking,assembled Washe, cataloged under National Stock Number 5310-01-477-6445, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kidde Technologies, Inc Div Kidde Aerospace and Defense. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-477-6445 |
| Primary Part Number | 304158-1 |
| Item Name | Nut,self-Locking,assembled Washe |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kidde Technologies, Inc Div Kidde Aerospace and Defense |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Washer Outside Diameter | 0.380 INCHES MAXIMUM IN |
| Width Across Flats | 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 80205-NAS1726 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Counterbore Diameter | 0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | FLAT WITH TURNED UP EDGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 8740 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 |
|---|---|
| 304158-1 | Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA) |
| Reference | Meaning |
|---|---|
| NAS1726C3E | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-477-6445 is a Nut,self-Locking,assembled Washe, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-477-6445 has 1 manufacturer part number on file: 304158-1 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).
Key specifications for 304158-1: Lubrication: SOLUBLE LUBRICANT; Overall Height: 0.233 INCHES NOMINAL IN; Washer Outside Diameter: 0.380 INCHES MAXIMUM IN; Width Across Flats: 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN. 16 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.