The Washer,key, cataloged under National Stock Number 5310-01-381-4955, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-381-4955 |
| Primary Part Number | 4060106 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Split Key Length | 0.222 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.620 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | AMS5599 FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.460 INCHES NOMINAL IN |
| External Tapered Key Width | 0.260 INCHES NOMINAL IN |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| External Straight Key Width | 0.260 INCHES NOMINAL IN |
| Distance From Centerline to End of Key | 0.360 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Angle Between External Keys | 60.0 DEGREES NOMINAL |
| Hole Diameter | 0.273 INCHES NOMINAL 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 |
|---|---|
| 4060106 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5310-01-381-4955 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-381-4955 has 1 manufacturer part number on file: 4060106 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4060106: Split Key Length: 0.222 INCHES NOMINAL IN; Overall Distance Including Keys: 1.620 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: AMS5599 FED SPEC 1ST 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.