The Washer,recessed, cataloged under National Stock Number 5310-00-653-9301, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-653-9301 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES OUTER |
| Surface Finish | 32.0 MICROINCHES INNER |
| Surface Finish | 63.0 MICROINCHES TOP |
| Top Recess Diameter | 1.622 INCHES NOMINAL IN |
| Bottom Recess Diameter | 1.622 INCHES NOMINAL IN |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS 5316 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.337 INCHES MINIMUM AND 2.338 INCHES MAXIMUM IN |
| Material Thickness | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Material | IRON OVERALL |
| Hole Diameter | 1.5605 INCHES MINIMUM AND 1.5615 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 |
|---|---|
| 641824 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-653-9301 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-653-9301: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES OUTER; Surface Finish: 32.0 MICROINCHES INNER; Surface Finish: 63.0 MICROINCHES TOP. 14 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.