The Washer,recessed, cataloged under National Stock Number 5310-01-151-1446, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-151-1446 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.280 INCHES MINIMUM AND 2.300 INCHES MAXIMUM IN |
| Material Thickness | 0.280 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Recess Diameter | 1.456 INCHES MINIMUM AND 1.462 INCHES MAXIMUM IN |
| Material | STEEL COMP 4140 AND STEEL COMP 8740 OVERALL |
| Hole Diameter | 1.250 INCHES MINIMUM AND 1.255 INCHES MAXIMUM IN |
| Recess Angle | 45.0 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 |
|---|---|
| 36-1893 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-151-1446 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-263-3181, 5330-01-477-5503. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-151-1446: Style Designator: RECESSED; Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.280 INCHES MINIMUM AND 2.300 INCHES MAXIMUM IN; Material Thickness: 0.280 INCHES MINIMUM AND 0.320 INCHES MAXIMUM 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.