The Washer,flat, cataloged under National Stock Number 5310-01-628-8787, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 9 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 | 5310-01-628-8787 |
| Primary Part Number | AEW26X25R000BD6A81 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Overall Diameter | 0.7344 INCHES NOMINAL IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.2812 INCHES NOMINAL IN |
| Thickness | 0.05 INCHES MINIMUM AND 0.08 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 |
|---|---|
| 94744A244 | Mcmaster-Carr Supply Co (USA) |
| AEW26X25R000BD6A81 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5310-01-628-8787 is a Washer,flat, manufactured by The American Society of Mechanical Engineers, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-628-8787 has 2 manufacturer part numbers on file: 94744A244 (Mcmaster-Carr Supply Co), AEW26X25R000BD6A81 (The American Society of Mechanical Engineers).
Key specifications for AEW26X25R000BD6A81: Overall Diameter: 0.7344 INCHES NOMINAL IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM; Cross-Sectional Shape Style: RECTANGULAR; Special Features: FOR SOFT MATERIALS. 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.