The Washer,flat, cataloged under National Stock Number 5310-00-008-7985, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-008-7985 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Length | 2.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-V-173 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Radius at Large End | 0.500 INCHES NOMINAL IN |
| Hardness Rating | 70.0 ROCKWELL M MINIMUM AND 170.0 ROCKWELL M MAXIMUM |
| Material Document and Classification | MIL-P-15053 TYPE FBM MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | VARNISH OVERALL |
| Peripheral Shape Style | OVAL |
| Width | 1.000 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.656 INCHES NOMINAL IN |
| Radius at Small End | 0.250 INCHES NOMINAL IN |
| Thickness | 0.062 INCHES NOMINAL 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 |
|---|---|
| 4C15007-101A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-008-7985 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-008-7985: Length: 2.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-V-173 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Radius at Large End: 0.500 INCHES NOMINAL IN; Hardness Rating: 70.0 ROCKWELL M MINIMUM AND 170.0 ROCKWELL M MAXIMUM. 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.