The Washer,lock, cataloged under National Stock Number 5310-00-275-6707, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Surface Combustion Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-275-6707 |
| Primary Part Number | D41A35C |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Surface Combustion Inc |
| Status | CANCELLED |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN |
| Material Thickness | 0.045 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.704 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D41A35C | Surface Combustion Inc (USA) |
| Reference | Meaning |
|---|---|
| 1230-00-00 | 3/9 Design control — primary reference Itw Shakeproof Automotive Products |
| 5310002756707 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 68121AS | 5/9 Secondary reference Stewart-Warner Corporation |
| 5310002756707 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5310-00-275-6707 is a Washer,lock, manufactured by Surface Combustion Inc, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-275-6707 has 1 manufacturer part number on file: D41A35C (Surface Combustion Inc).
2 possible matches (shared part number, not a government interchangeability claim): 1055-01-379-7606, 5895-01-718-3953. Verify interchangeability with system specifications before substitution.
Key specifications for D41A35C: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN; Material Thickness: 0.045 INCHES NOMINAL IN; Surface Treatment: CADMIUM OVERALL. 6 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.
NSN 5310-00-275-6707 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.