The Washer,key, cataloged under National Stock Number 5310-01-121-0385, 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 11 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-121-0385 |
| Primary Part Number | 74A410582-2001 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Internal Straight Key Width | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Wire Hole Diameter | 0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| Distance From Centerline to Inside of Prebent Key | 0.530 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-6758,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.910 INCHES NOMINAL IN |
| Material Thickness | 0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| External Prebent Key Angle | 30.0 DEGREES NOMINAL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 0.577 INCHES MINIMUM AND 0.587 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 |
|---|---|
| 74A410582-2001 | Tect Hypervelocity, Inc. (USA) |
| 74A410582-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A410582-2001 | Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| 10109379 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A410582-2001 | C/1 Advisory reference — outside the item-of-supply concept Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A410582-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A410582-2001 | C/1 Advisory reference — outside the item-of-supply concept Circor Aerospace, Inc. Div Circor |
NSN 5310-01-121-0385 is a Washer,key, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-121-0385 has 3 manufacturer part numbers on file: 74A410582-2001 (Tect Hypervelocity, Inc.), 74A410582-2001 (The Boeing Company Div Defense), 74A410582-2001 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc).
Key specifications for 74A410582-2001: Internal Straight Key Width: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Wire Hole Diameter: 0.062 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN; Distance From Centerline to Inside of Prebent Key: 0.530 INCHES NOMINAL IN; Material Document and Classification: MIL-S-6758,COND E2 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-18729,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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.