The Washer,lock, cataloged under National Stock Number 5310-01-296-5356, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-296-5356 |
| Primary Part Number | 6252930-121 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-81751,TY 1,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.586 INCHES MAXIMUM IN |
| Material Thickness | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Color | GRAY/GREY OVERALL |
| Material | NICKEL ALLOY A OVERALL |
| Hole Diameter | 0.318 INCHES MINIMUM AND 0.328 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 |
| Part Number | Manufacturer |
|---|---|
| 6252930-121 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6242930-121 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-296-5356 is a Washer,lock, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-296-5356 has 1 manufacturer part number on file: 6252930-121 (Naval Sea Systems Command).
Key specifications for 6252930-121: Surface Treatment Document and Classification: MIL-C-81751,TY 1,CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.586 INCHES MAXIMUM IN. 8 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.