The Washer,flat, cataloged under National Stock Number 5310-01-476-9573, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-476-9573 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633 TYPE II,CLASS FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A331,GRADE 4130 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A506,GRADE 4130 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 96906-MS51412-25A/INACTIVE GOVERNMENT STANDARD A |
| Surface Treatment | ZINC OR CHROMATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4130 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Thickness | 0.059 INCHES MINIMUM AND 0.067 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 |
|---|---|
| MS51412-25A | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-01-476-9573 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-476-9573: Surface Treatment Document and Classification: ASTM B633 TYPE II,CLASS FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Material Document and Classification: ASTM A331,GRADE 4130 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A506,GRADE 4130 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.