The Washer,key, cataloged under National Stock Number 5310-01-055-2838, 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 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-055-2838 |
| Primary Part Number | 415892 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.150 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN |
| Material Thickness | 0.038 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN |
| External Prebent Key Width | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.390 INCHES MINIMUM AND 0.395 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 |
|---|---|
| 415892 | Tokyo Judoi Kogyo K.k. (JPN) |
| 415892 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 415892 | The United Tool & Die Company (USA) |
| Reference | Meaning |
|---|---|
| 415892 | 5/9 Secondary reference Tokyo Judogi Kogyo Co. |
| 415892 | 5/9 Secondary reference British Aerospace Holdings Inc |
NSN 5310-01-055-2838 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-055-2838 has 3 manufacturer part numbers on file: 415892 (Tokyo Judoi Kogyo K.k.), 415892 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 415892 (The United Tool & Die Company).
Key specifications for 415892: Internal Prebent Key Width: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.150 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN; Material Document and Classification: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN. 8 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.