The Washer,lock, cataloged under National Stock Number 5310-00-264-0159, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-264-0159 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 90.0 ROCKWELL B NOMINAL |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.198 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | E CLASS AND 2 STYLE |
| Color | YELLOW OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.102 INCHES MINIMUM AND 0.111 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 |
|---|---|
| 310-0395-000 | 5/1 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| AN935B3 | 2/2 Government specification standardization U.S. Government activity |
| FF-W-84 | 4/1 Identification reference U.S. Government activity |
| 119363-002 | 5/1 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 8908297 | 5/1 Secondary reference Us Army Aviation and Missile Command |
| 310-0394-000 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5310-00-264-0159 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-264-0159: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 90.0 ROCKWELL B NOMINAL; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.198 INCHES MAXIMUM IN. 10 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.