The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-244-2872, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-244-2872 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Shoulder Height | 0.013 INCHES NOMINAL IN |
| Style Designator | SHOULDERED AND RECESSED |
| Outside Diameter | 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Material Thickness | 0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Recess Diameter | 0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Hole Diameter | 0.133 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN |
| Recess Angle | 100.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 5002810-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-244-2872 is a Washer,shouldered and Recessed, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-578-1421. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-244-2872: Shoulder Height: 0.013 INCHES NOMINAL IN; Style Designator: SHOULDERED AND RECESSED; Outside Diameter: 0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN; Material Thickness: 0.034 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN. 10 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.