The Washer,key, cataloged under National Stock Number 5310-00-534-2355, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 9 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-534-2355 |
| Primary Part Number | 8604399 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Internal Straight Key Width | 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.657 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.812 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN |
| Material Thickness | 0.088 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.340 INCHES MINIMUM AND 1.350 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 |
NSN 5310-00-534-2355 is a Washer,key, manufactured by General Motors Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-534-2355 has 2 manufacturer part numbers on file: 8604399 (General Motors Corp), 5342355 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-537-9755. Verify interchangeability with system specifications before substitution.
Key specifications for 8604399: Internal Straight Key Width: 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.657 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.