The Washer,key, cataloged under National Stock Number 5310-01-171-0582, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-171-0582 |
| Primary Part Number | 642A174 P-16 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Distance From Centerline to End of Longest Key | 1.937 INCHES NOMINAL IN |
| Overall Distance Including Keys | 3.125 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR KEY |
| Material Document and Classification | B8A4C2,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Material Thickness | 0.094 INCHES NOMINAL IN |
| External Prebent Key Width | 2.375 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 1.312 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 |
|---|---|
| 642A174 P-16 PRIMARY | General Electric Company (USA) |
| PL-781E826 PART 50 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 642A174 P.16 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 642A174 PIECE 16 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
NSN 5310-01-171-0582 is a Washer,key, manufactured by General Electric Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-171-0582 has 2 manufacturer part numbers on file: 642A174 P-16 (General Electric Company), PL-781E826 PART 50 (General Electric Company).
Key specifications for 642A174 P-16: Distance From Centerline to End of Longest Key: 1.937 INCHES NOMINAL IN; Overall Distance Including Keys: 3.125 INCHES NOMINAL IN; Style Designator: RECTANGULAR KEY; Material Document and Classification: B8A4C2,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 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.