The Washer,lock, cataloged under National Stock Number 5310-01-314-3947, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-314-3947 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | COUNTERSINK EXTERNAL TEETH |
| Material Document and Classification | QQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.976 INCHES NOMINAL IN |
| Material Thickness | 0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 4 TYPE AND 1 STYLE AND SPECIAL COMPOSITION |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Material | NICKEL ALLOY K-500 OVERALL |
| Hole Diameter | 0.512 INCHES MINIMUM AND 0.529 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 |
|---|---|
| FF-W-100 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-314-3947 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-314-3947: Style Designator: COUNTERSINK EXTERNAL TEETH; Material Document and Classification: QQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.976 INCHES NOMINAL IN; Material Thickness: 0.037 INCHES MINIMUM AND 0.045 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.