The Washer,flat, cataloged under National Stock Number 5310-01-070-9645, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-070-9645 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 COND A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 COND H MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 2ND MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 301 OR STEEL COMP 303 OR STEEL COMP 303SE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Thickness | 0.004 INCHES MINIMUM AND 0.006 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 |
|---|---|
| 1603660-236 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-070-9645 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-070-9645: Overall Diameter: 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059 COND A MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059 COND H MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 2ND MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 3RD MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.