The Washer,key, cataloged under National Stock Number 5310-01-316-7083, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-316-7083 |
| Primary Part Number | 4074426 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.765 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Material Thickness | 0.019 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Internal Prebent Key Length | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| External Prebent Key Width | 0.380 INCHES NOMINAL IN |
| Material | STEEL COMP 321 OVERALL |
| Hole Diameter | 0.558 INCHES MINIMUM AND 0.568 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 |
|---|---|
| 4074426 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4074426 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0787450 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-316-7083 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-316-7083 has 2 manufacturer part numbers on file: 4074426 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4074426 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4074426: Distance From Centerline to Inside of Prebent Key: 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; External Prebent Key Length: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.765 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN; Style Designator: KEY. 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.