The Washer,key, cataloged under National Stock Number 5310-01-348-3573, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-348-3573 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Prebent Key Width | 0.290 INCHES NOMINAL IN |
| Overall Distance Including Keys | 4.047 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 3.562 INCHES NOMINAL IN |
| Material Thickness | 0.095 INCHES NOMINAL IN |
| External Key Quantity | 19 |
| Internal Prebent Key Length | 0.165 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 2.973 INCHES MINIMUM AND 3.003 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 |
|---|---|
| 424381-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-348-3573 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-348-3573: Internal Prebent Key Width: 0.290 INCHES NOMINAL IN; Overall Distance Including Keys: 4.047 INCHES NOMINAL IN; Style Designator: KEY; Outside Diameter: 3.562 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.