The Washer,flat, cataloged under National Stock Number 5310-00-916-8079, 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11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-916-8079 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | WPS 10012,FSCN 79294 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN |
| Heat Treatment | COLD DRAWN 1/4 HARD CONDITION |
| Material Document and Classification | MIL-S-5059,TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Thickness | 0.017 INCHES MINIMUM AND 0.023 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 |
|---|---|
| 40A574 | 3/2 Design control — primary reference U.S. Government activity |
| 40A574 | 5/9 Secondary reference Moog Inc Div Moog Inc., Space and Defense - Salt Lake City |
| 40A574 | 5/9 Secondary reference E-Systems Inc Montek Div Fluid Controls Opns |
NSN 5310-00-916-8079 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-916-8079: Surface Treatment Document and Classification: WPS 10012,FSCN 79294 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN; Heat Treatment: COLD DRAWN 1/4 HARD CONDITION; Material Document and Classification: MIL-S-5059,TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.