The Washer,lock, cataloged under National Stock Number 5310-01-588-8364, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-588-8364 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Material Document and Classification | QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.630 INCHES NOMINAL IN |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY 510 OVERALL |
| Hole Diameter | 0.510 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 |
| Reference | Meaning |
|---|---|
| 1-329632-2 | 3/2 Design control — primary reference U.S. Government activity |
| 9861D937 | 5/9 Secondary reference Innoventor, Inc. Dba Innoventor Engineering |
NSN 5310-01-588-8364 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-588-8364: Surface Treatment Document and Classification: QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.630 INCHES NOMINAL 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.