The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-475-4140, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-475-4140 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Washer Outside Diameter | 8.3 MILLIMETERS MINIMUM MM |
| Width Across Flats | 5.8 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM |
| Thread Tolerance Class | 4H6H INTERNAL |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | MJ |
| Precious Material | SILVER |
| Thread Pitch in Millimeters | 0.80 |
| Temp Rating | 425.0 CELSIUS MAXIMUM DEGC |
| Washer Thickness | 0.6 MILLIMETERS MINIMUM MM |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 5.0 MILLIMETERS MM |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | SURFACE SILVER |
| Nut Style | HEXAGON |
| Material | IRON ALLOY 660 OVERALL |
| 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 |
|---|---|
| NA0034C050 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-475-4140 is a Nut,self-Locking,extended Washer, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-475-4140: Overall Height: 5.0 MILLIMETERS MAXIMUM MM; Washer Outside Diameter: 8.3 MILLIMETERS MINIMUM MM; Width Across Flats: 5.8 MILLIMETERS MINIMUM AND 6.0 MILLIMETERS MAXIMUM MM; Thread Tolerance Class: 4H6H INTERNAL. 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.