The Washer,flat, cataloged under National Stock Number 5310-01-701-9065, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-701-9065 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | AMS2700, METHOD 1, TYPE 2 OR TYPE 8, CLASS 1 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.870 INCHES MINIMUM AND 1.895 INCHES MAXIMUM IN |
| Heat Treatment | HARDENED |
| Material Document and Classification | AMS5525 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | IRON ALLOY 660 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.13 INCHES MINIMUM AND 1.15 INCHES MAXIMUM IN |
| Thickness | 0.082 INCHES MINIMUM AND 0.098 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 |
|---|---|
| NAS1149E1890R | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-701-9065 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-701-9065: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: AMS2700, METHOD 1, TYPE 2 OR TYPE 8, CLASS 1 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.870 INCHES MINIMUM AND 1.895 INCHES MAXIMUM IN; Heat Treatment: HARDENED. 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.