The Washer,key, cataloged under National Stock Number 5310-01-016-7541, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-016-7541 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.156 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.422 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 1.688 INCHES NOMINAL IN |
| Material Thickness | 0.1196 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.005 INCHES MINIMUM AND 1.015 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 |
|---|---|
| PDG6114 | 3/9 Design control — primary reference Product Development Group Inc |
NSN 5310-01-016-7541 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-016-7541: Internal Straight Key Width: 0.156 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.422 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 1.688 INCHES NOMINAL IN. 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.