The Washer,flat, cataloged under National Stock Number 5310-01-233-1411, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-233-1411 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4135 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.781 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN |
| Thickness | 0.073 INCHES MINIMUM AND 0.087 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 |
|---|---|
| BACW10BN-122P | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-233-1411 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-233-1411: Surface Treatment Document and Classification: AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.425 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR. 10 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.