The Washer,key, cataloged under National Stock Number 5310-01-247-2749, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-247-2749 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.0934 INCHES MINIMUM AND 0.0944 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 0.594 INCHES NOMINAL IN |
| Material Thickness | 0.073 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Material | COPPER ALLOY OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 0.375 INCHES MINIMUM AND 0.376 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 |
|---|---|
| 2531881 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-01-247-2749 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-247-2749: Internal Straight Key Width: 0.0934 INCHES MINIMUM AND 0.0944 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Style Designator: KEY; Outside Diameter: 0.594 INCHES NOMINAL 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.