The Washer,flat, cataloged under National Stock Number 5310-01-653-3801, 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8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-653-3801 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Material Document and Classification | AMS-T-6736,TYPE1,HT 125 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE AND AMS6530 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 80205-NAS43 NATIONAL STD/SPEC |
| Width | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 AND STEEL COMP 8630 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.002 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN |
| Thickness | 0.0418 INCHES MINIMUM AND 0.0518 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 |
|---|---|
| NAS43HT16-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-653-3801 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-653-3801: Material Document and Classification: AMS-T-6736,TYPE1,HT 125 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE AND AMS6530 NATIONAL STD/SPEC 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Specification/standard Data: 80205-NAS43 NATIONAL STD/SPEC; Width: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN. 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.