The Washer,key, cataloged under National Stock Number 5310-00-385-9195, 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 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-385-9195 |
| Primary Part Number | 4006263 |
| 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 | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Split Key Length | 0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 0.594 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| External Tapered Key Width | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Material Thickness | 0.019 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| External Key Quantity | 3 |
| External Prebent Key Angle | 10.0 DEGREES MINIMUM AND 20.0 DEGREES MAXIMUM |
| External Prebent Key Width | 0.110 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 OVERALL |
| Angle Between External Keys | 58.0 DEGREES NOMINAL |
| Hole Diameter | 0.195 INCHES MINIMUM AND 0.200 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 |
NSN 5310-00-385-9195 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-385-9195 has 2 manufacturer part numbers on file: 4006263 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4006263C (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4006263: Distance From Centerline to Inside of Prebent Key: 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN; Split Key Length: 0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; External Prebent Key Length: 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN; Overall Distance Including Keys: 0.594 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN. 15 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.