The Washer,lock, cataloged under National Stock Number 5310-00-727-2371, 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7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-727-2371 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | FCS-114 TY 2 CL 2/78189/ MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES NOMINAL IN |
| Surface Treatment | GOLD OVERALL |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.256 INCHES MINIMUM AND 0.267 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 |
|---|---|
| 107003-463 | 7/2 Vendor item drawing reference Raytheon Company |
| 1914-05 | 3/9 Design control — primary reference Itw Shakeproof Automotive Products |
NSN 5310-00-727-2371 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-727-2371: Surface Treatment Document and Classification: FCS-114 TY 2 CL 2/78189/ MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.396 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES NOMINAL IN. 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.