The Washer,flat, cataloged under National Stock Number 5310-01-531-4060, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Safran Power Usa Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-531-4060 |
| Primary Part Number | 05-370169 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Safran Power Usa Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TYPE1, CLASS 3 FED STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1010 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.125 INCHES NOMINAL IN |
| Thickness | 0.032 INCHES NOMINAL IN |
| 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 |
|---|---|
| 05-370169 PRIMARY | Safran Power Usa Llc (USA) |
| Reference | Meaning |
|---|---|
| 05-370169 | 3/9 Design control — primary reference Lucas Aerospace Power Equipment Corporation |
NSN 5310-01-531-4060 is a Washer,flat, manufactured by Safran Power Usa Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-531-4060 has 1 manufacturer part number on file: 05-370169 (Safran Power Usa Llc).
Key specifications for 05-370169: Surface Treatment Document and Classification: QQ-P-416, TYPE1, CLASS 3 FED STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.375 INCHES NOMINAL IN; Material Document and Classification: QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.