The Washer,key, cataloged under National Stock Number 5310-00-471-0784, 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 | 5310-00-471-0784 |
| Primary Part Number | 492389 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Internal Straight Key Width | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 1.580 INCHES MINIMUM AND 1.600 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| External Straight Key Width | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| External Key Quantity | 9 |
| Material | STEEL COMP 631 OVERALL |
| Internal Key Quantity | 8 |
| Hole Diameter | 1.260 INCHES MINIMUM AND 1.270 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 |
|---|---|
| 492389 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5310-00-471-0784 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-471-0784 has 1 manufacturer part number on file: 492389 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 492389: Internal Straight Key Width: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN; Overall Distance Including Keys: 1.580 INCHES MINIMUM AND 1.600 INCHES MAXIMUM IN; Style Designator: KEY. 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.