The Washer,key, cataloged under National Stock Number 5310-01-317-7129, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-317-7129 |
| Primary Part Number | 4075436 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Style Designator | KEY |
| Material | NICKEL ALLOY 625 OVERALL |
| 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 |
|---|---|
| 4075436 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0787445 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4075436 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5310-01-317-7129 is a Washer,key, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-317-7129 has 1 manufacturer part number on file: 4075436 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4075436: Style Designator: KEY; Special Features: STYLE VARIES WITH 4 SPLIT KEYS & TWO WASHERS CONNECTED BY 0.200 STRIP; Material: NICKEL ALLOY 625 OVERALL. 2 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.