The Washer,key, cataloged under National Stock Number 5310-00-570-0404, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-570-0404 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | KEY |
| Material Document and Classification | AMS 5062 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Material Thickness | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN |
| External Straight Key Width | 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Distance From Centerline to End of Key | 0.349 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.276 INCHES MINIMUM AND 0.296 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 |
| Reference | Meaning |
|---|---|
| 707763 | 5/9 Secondary reference Aero Precision Industries Llc |
| 707763 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-570-0404 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-570-0404: Style Designator: KEY; Material Document and Classification: AMS 5062 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN; Material Thickness: 0.057 INCHES MINIMUM AND 0.067 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.