The Washer,key, cataloged under National Stock Number 5310-01-336-2261, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-336-2261 |
| Primary Part Number | CP026C08 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| External Straight Key Length | 0.281 INCHES NOMINAL IN |
| Overall Distance Including Keys | 2.890 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-N-286,CLASS B,GRADE 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.265 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN |
| Peening Key Length | 1.687 INCHES NOMINAL IN |
| Material Thickness | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| External Straight Key Width | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| External Key Quantity | 1 |
| Material | NICKEL ALLOY OVERALL |
| Hole Diameter | 0.765 INCHES MINIMUM AND 0.797 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 |
|---|---|
| CP026C08 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 5310-01-336-2261 is a Washer,key, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-336-2261 has 1 manufacturer part number on file: CP026C08 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for CP026C08: External Straight Key Length: 0.281 INCHES NOMINAL IN; Overall Distance Including Keys: 2.890 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: QQ-N-286,CLASS B,GRADE 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.