The Washer,lock, cataloged under National Stock Number 5310-00-043-2646, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-043-2646 |
| Primary Part Number | 432646 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | CANCELLED |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.678 INCHES MAXIMUM IN |
| Material Thickness | 0.070 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | A CLASS AND 1 STYLE |
| Surface Treatment | TIN OVERALL |
| Material | STEEL COMP 1060 OR STEEL COMP 1080 OVERALL |
| Hole Diameter | 0.382 INCHES MINIMUM AND 0.398 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 |
|---|---|
| 432646 | General Motors Llc Dba General Motors Llc (USA) |
| 12X201 | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 432646 | 3/9 Design control — primary reference General Motors Corp |
| FFW84CLASSASTYLE1 | 4/1 Identification reference U.S. Government activity |
| 12X201 | 5/9 Secondary reference Prestolite Electric Inc |
| 5310PL0720370 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5310000432646 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5310-00-043-2646 is a Washer,lock, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-043-2646 has 2 manufacturer part numbers on file: 432646 (General Motors Llc Dba General Motors Llc), 12X201 (Prestolite Electric Inc).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-346-7163. Verify interchangeability with system specifications before substitution.
Key specifications for 432646: Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 0.678 INCHES MAXIMUM IN; Material Thickness: 0.070 INCHES NOMINAL 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.
NSN 5310-00-043-2646 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.