The Washer,lock, cataloged under National Stock Number 5310-00-968-3176, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Arquus (ex Panhard General Defense). Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-968-3176 |
| Primary Part Number | 5M00541026 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Arquus (ex Panhard General Defense) |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 90.0 ROCKWELL B MINIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.323 INCHES MAXIMUM IN |
| Material Thickness | 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Departure From Cited Designator | AS MODIFIED BY SURFACE TREATMENT |
| Nondefinitive Spec/std Data | 1 STYLE AND E CLASS |
| Surface Treatment | TIN OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.194 INCHES MINIMUM AND 0.205 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 |
| Part Number | Manufacturer |
|---|---|
| 5M00541026 | Arquus (ex Panhard General Defense) (FRA) |
| 541026 | Arquus (ex Panhard General Defense) (FRA) |
| MS35337-100 | Leach International Europe (FRA) |
| Reference | Meaning |
|---|---|
| MS35337-100 | 2/1 Government specification standardization U.S. Government activity |
| 3031914-5 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 5310-00-968-3176 is a Washer,lock, manufactured by Arquus (ex Panhard General Defense), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-968-3176 has 3 manufacturer part numbers on file: 5M00541026 (Arquus (ex Panhard General Defense)), 541026 (Arquus (ex Panhard General Defense)), MS35337-100 (Leach International Europe).
Key specifications for 5M00541026: Surface Treatment Document and Classification: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 90.0 ROCKWELL B MINIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.323 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.