The Washer,recessed, cataloged under National Stock Number 5310-00-256-6865, 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8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-256-6865 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.118 INCHES MINIMUM AND 2.123 INCHES MAXIMUM IN |
| Recess Depth | 0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN |
| Material Thickness | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Material | STEEL COMP 416F OVERALL |
| Hole Diameter | 1.060 INCHES MINIMUM AND 1.090 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 |
|---|---|
| 2480966 | 5/9 Secondary reference U.S. Government activity |
| 2480966 | 3/9 Design control — primary reference Parker-Hannifin Corporation Dba Parker Motion & Control Sales |
NSN 5310-00-256-6865 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-256-6865: Overall Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Hardness Rating: 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Style Designator: RECESSED; Material Document and Classification: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.