The Washer,keyway, cataloged under National Stock Number 5310-01-352-4404, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-352-4404 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Distance From Centerline to Bottom of Internal Keyway | 0.617 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN |
| Internal Keyway Width | 0.130 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.358 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Internal Keyway Quantity | 2 |
| Material Thickness | 0.221 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Material | STEEL COMP 4340 OVERALL |
| Hole Diameter | 1.157 INCHES MINIMUM AND 1.158 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 |
|---|---|
| 748896 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-352-4404 is a Washer,keyway, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-352-4404: Distance From Centerline to Bottom of Internal Keyway: 0.617 INCHES MINIMUM AND 0.622 INCHES MAXIMUM IN; Internal Keyway Width: 0.130 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Material Document and Classification: AMS 6414 ASSN STD 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.