The Washer,lock, cataloged under National Stock Number 5310-01-052-4111, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-052-4111 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | DOME INTERNAL TEETH |
| Outside Diameter | 0.323 INCHES MINIMUM AND 0.323 INCHES MINIMUM AND 0.333 INCHES MAXIMUM0.333 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES NOMINAL0.025 INCHES NOMINAL IN |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.146 INCHES MINIMUM AND 0.146 INCHES MINIMUM AND 0.150 INCHES MAXIMUM0.150 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 |
| Reference | Meaning |
|---|---|
| 4706-05-01-0531 | 3/9 Design control — primary reference Itw Shakeproof Automotive Products |
| 210-0071-00 | 5/9 Secondary reference Spacelabs-Hillsboro Operations Squibb Vitatek Inc |
| 210-0071-00 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-01-052-4111 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-052-4111: Overall Height: 0.060 INCHES MINIMUM0.060 INCHES MINIMUM IN; Style Designator: DOME INTERNAL TEETH; Outside Diameter: 0.323 INCHES MINIMUM AND 0.323 INCHES MINIMUM AND 0.333 INCHES MAXIMUM0.333 INCHES MAXIMUM IN; Material Thickness: 0.025 INCHES NOMINAL0.025 INCHES NOMINAL IN. 6 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.