The Washer,lock, cataloged under National Stock Number 5310-00-982-6509, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-982-6509 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.239 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | F CLASS AND 1 STYLE |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 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 |
|---|---|
| FFW84CLASSFSTYLE1 | 4/1 Identification reference U.S. Government activity |
| AN935B6L | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-00-982-6509 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-982-6509: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.239 INCHES MAXIMUM IN; Material Thickness: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: F CLASS AND 1 STYLE. 7 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.