The Washer,key, cataloged under National Stock Number 5310-01-299-2913, 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 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-299-2913 |
| Primary Part Number | PWT-06 |
| 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 | 1.953 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.438 INCHES MINIMUM AND 1.458 INCHES MAXIMUM IN |
| Material Thickness | 0.042 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| External Straight Key Width | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| External Key Quantity | 13 |
| Internal Prebent Key Length | 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Surface Treatment | OIL OVERALL |
| Material | STEEL COMP 1010 OVERALL |
| Hole Diameter | 1.193 INCHES MINIMUM AND 1.213 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 |
|---|---|
| PWT-06 PRIMARY | Whittet-Higgins Company (USA) |
| Reference | Meaning |
|---|---|
| 10250037-1 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| PWT K06 | 5/9 Secondary reference Whittet-Higgins Company |
NSN 5310-01-299-2913 is a Washer,key, manufactured by Whittet-Higgins Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-299-2913 has 1 manufacturer part number on file: PWT-06 (Whittet-Higgins Company).
Key specifications for PWT-06: Internal Prebent Key Width: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.953 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.