The Washer,key, cataloged under National Stock Number 5310-01-083-7196, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Whittet-Higgins Company. Government technical data includes 11 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. 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 | 5310-01-083-7196 |
| Primary Part Number | WS05 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Whittet-Higgins Company |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.657 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN |
| Material Thickness | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN |
| External Key Quantity | 13 |
| Internal Prebent Key Length | 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| External Prebent Key Width | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Hole Diameter | 0.989 INCHES MINIMUM AND 1.009 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 |
|---|---|
| WS05 PRIMARY | Whittet-Higgins Company (USA) |
NSN 5310-01-083-7196 is a Washer,key, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-083-7196 has 1 manufacturer part number on file: WS05 (Whittet-Higgins Company).
1 possible match (shared part number, not a government interchangeability claim): 6510-01-708-0593. Verify interchangeability with system specifications before substitution.
Key specifications for WS05: Internal Prebent Key Width: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.657 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN; Style Designator: KEY; Outside Diameter: 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN. 11 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.