The Washer,flat, cataloged under National Stock Number 5310-00-262-6219, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Surface Combustion Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-262-6219 |
| Primary Part Number | C45A28 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Surface Combustion Inc |
| Status | ACTIVE |
| Overall Diameter | 0.331 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.214 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Thickness | 0.050 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 |
| Part Number | Manufacturer |
|---|---|
| 9126262-01 | Diversified Aerospace Services, Llc Dba Lloyd Aircraft Company (USA) |
| C45A28 PRIMARY | Surface Combustion Inc (USA) |
NSN 5310-00-262-6219 is a Washer,flat, manufactured by Surface Combustion Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-262-6219 has 2 manufacturer part numbers on file: 9126262-01 (Diversified Aerospace Services, Llc Dba Lloyd Aircraft Company), C45A28 (Surface Combustion Inc).
Key specifications for C45A28: Overall Diameter: 0.331 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CADMIUM OR ZINC OVERALL; Peripheral Shape Style: ROUND. 8 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.