The Washer,concave, cataloged under National Stock Number 5310-01-373-0753, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 8 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 | 5310-01-373-0753 |
| Primary Part Number | 1450M89P01 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES TOP |
| Radius | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.427 INCHES MINIMUM AND 0.433 INCHES MAXIMUM IN |
| Recess Depth | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Material Thickness | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Material | IRON ALLOY 660 OVERALL |
| Hole Diameter | 0.191 INCHES MINIMUM AND 0.196 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 |
|---|---|
| 1450M89P01 PRIMARY | General Electric Company (USA) |
NSN 5310-01-373-0753 is a Washer,concave, manufactured by General Electric Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-373-0753 has 1 manufacturer part number on file: 1450M89P01 (General Electric Company).
Key specifications for 1450M89P01: Surface Finish: 63.0 MICROINCHES TOP; Radius: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.427 INCHES MINIMUM AND 0.433 INCHES MAXIMUM IN. 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.