The Washer,flat, cataloged under National Stock Number 5310-00-199-9012, 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13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-199-9012 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1 OR CHEMICAL FILM,MIL-C-5541 DYED BLUE MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Heat Treatment | T-3 SOLUTION HEAT TREATED, COLD WORKED OR T-4 SOLUTION HEAT TREATED, NATURAL AGED |
| Material Document and Classification | WW-T-786,T3,TY1 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-268,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 80205-NAS43 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | ANODIZE OVERALL |
| Minimum Tensile Strength | 62000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.160 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Thickness | 0.016 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 |
|---|---|
| NAS43DD5-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-199-9012 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-199-9012: Surface Treatment Document and Classification: MIL-A-8625,TY 1 OR CHEMICAL FILM,MIL-C-5541 DYED BLUE MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Heat Treatment: T-3 SOLUTION HEAT TREATED, COLD WORKED OR T-4 SOLUTION HEAT TREATED, NATURAL AGED; Material Document and Classification: WW-T-786,T3,TY1 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-268,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.