The Washer,recessed, cataloged under National Stock Number 5310-00-930-6595, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-930-6595 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Top Recess Diameter | 0.699 INCHES NOMINAL IN |
| Bottom Recess Diameter | 0.699 INCHES NOMINAL IN |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS 5612 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Recess Depth | 0.070 INCHES NOMINAL IN |
| Material Thickness | 0.180 INCHES NOMINAL IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 410 OVERALL |
| Hole Diameter | 0.514 INCHES MINIMUM AND 0.523 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 |
|---|---|
| 12L9093-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-930-6595 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-930-6595: Top Recess Diameter: 0.699 INCHES NOMINAL IN; Bottom Recess Diameter: 0.699 INCHES NOMINAL IN; Hardness Rating: 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Top Recess Angle: 90.0 DEGREES NOMINAL. 13 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.