The Washer,key, cataloged under National Stock Number 5310-01-238-0648, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 9 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 | 5310-01-238-0648 |
| Primary Part Number | 74D461057-2071 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Wire Hole Diameter | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.500 INCHES NOMINAL IN |
| Overall Distance Including Keys | 2.100 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.600 INCHES NOMINAL IN |
| Material Thickness | 0.090 INCHES NOMINAL IN |
| External Prebent Key Angle | 28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 1.125 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 |
|---|---|
| 74D461057-2071 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5310-01-238-0648 is a Washer,key, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-238-0648 has 1 manufacturer part number on file: 74D461057-2071 (The Boeing Company Div Defense).
Key specifications for 74D461057-2071: Wire Hole Diameter: 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; External Prebent Key Length: 0.500 INCHES NOMINAL IN; Overall Distance Including Keys: 2.100 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.