The Washer,key, cataloged under National Stock Number 5310-00-941-0156, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-941-0156 |
| Primary Part Number | 471533 |
| 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 | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5040 ASSN STD SINGLE MATERIAL RESPONSE OR 5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.750 INCHES MINIMUM AND 2.770 INCHES MAXIMUM IN |
| External Straight Key Width | 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| External Key Quantity | 4 |
| Material | STEEL COMP 1010 OVERALL |
| Internal Key Quantity | 8 |
| Hole Diameter | 2.570 INCHES MINIMUM AND 2.590 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 |
|---|---|
| 471533 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 471533 | 5/2 Secondary reference U.S. Government activity |
| 471533 | 5/9 Secondary reference Tokyo Judogi Kogyo Co. |
NSN 5310-00-941-0156 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-941-0156 has 1 manufacturer part number on file: 471533 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 471533: Internal Straight Key Width: 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN; Material Document and Classification: AMS5040 ASSN STD SINGLE MATERIAL RESPONSE OR 5042 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.750 INCHES MINIMUM AND 2.770 INCHES MAXIMUM IN; External Straight Key Width: 0.220 INCHES MINIMUM AND 0.240 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.