The Washer,flat, cataloged under National Stock Number 5310-00-293-6570, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 12 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 | 5310-00-293-6570 |
| Primary Part Number | 626637 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Surface Finish | 40.0 MICROINCHES TOP |
| Surface Finish | 40.0 MICROINCHES BOTTOM |
| Overall Diameter | 0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C NOMINAL |
| Material Document and Classification | AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 416F OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Thickness | 0.0602 INCHES MINIMUM AND 0.0604 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 |
|---|---|
| 626637 PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
NSN 5310-00-293-6570 is a Washer,flat, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-293-6570 has 1 manufacturer part number on file: 626637 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
Key specifications for 626637: Surface Finish: 40.0 MICROINCHES TOP; Surface Finish: 40.0 MICROINCHES BOTTOM; Overall Diameter: 0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN; Hardness Rating: 35.0 ROCKWELL C NOMINAL. 12 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.