The Washer,lock, cataloged under National Stock Number 5310-00-013-8524, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-013-8524 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.255 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Hole Diameter | 0.115 INCHES MINIMUM AND 0.123 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 |
|---|---|
| 138524 | 3/9 Design control — primary reference General Motors Corp |
| 138524 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| MILW6986TYPEA | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-013-8524 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-013-8524: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.255 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Material Thickness: 0.015 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN; Surface Treatment: PHOSPHATE OVERALL. 5 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.