The Washer,concave, cataloged under National Stock Number 5310-01-504-0844, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-504-0844 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Radius | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Style Designator | CONCAVE |
| Outside Diameter | 0.608 INCHES MINIMUM AND 0.618 INCHES MAXIMUM IN |
| Material Thickness | 0.106 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OR STEEL COMP 8740 OVERALL |
| Hole Diameter | 0.417 INCHES MINIMUM AND 0.427 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 |
|---|---|
| MIL-W-45595/7-03 | 2/2 Government specification standardization U.S. Government activity |
| MIL-W-45595/7 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-504-0844 is a Washer,concave, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-504-0844: Radius: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Style Designator: CONCAVE; Outside Diameter: 0.608 INCHES MINIMUM AND 0.618 INCHES MAXIMUM IN; Material Thickness: 0.106 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN. 6 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.