The Washer,lock, cataloged under National Stock Number 5310-01-027-5132, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-027-5132 |
| Primary Part Number | 431839-1 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.873 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 316 OVERALL |
| Hole Diameter | 0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-027-5132 is a Washer,lock, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-027-5132 has 3 manufacturer part numbers on file: 431839-1 (Raytheon Company), 431839-1 (Raytheon Company Dba Raytheon Co), 431839-1 (Grimes Aerospace Company).
Key specifications for 431839-1: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.