The Washer,flat, cataloged under National Stock Number 5310-00-286-8914, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Smith and Smith Aircraft Co. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-286-8914 |
| Primary Part Number | EE5812 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Smith and Smith Aircraft Co |
| Status | ACTIVE |
| Overall Diameter | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Hardness Rating | 83.5 ROCKWELL B NOMINAL |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1010 OVERALL |
| Center Hole Shape Style | ROUND |
| Thickness | 0.029 INCHES MINIMUM AND 0.035 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 |
| Part Number | Manufacturer |
|---|---|
| EE5812 PRIMARY | Smith and Smith Aircraft Co (USA) |
NSN 5310-00-286-8914 is a Washer,flat, manufactured by Smith and Smith Aircraft Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-286-8914 has 1 manufacturer part number on file: EE5812 (Smith and Smith Aircraft Co).
Key specifications for EE5812: Overall Diameter: 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Hardness Rating: 83.5 ROCKWELL B NOMINAL; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 9 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.