The Disk,solid,plain, cataloged under National Stock Number 5340-00-219-7756, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-219-7756 |
| Primary Part Number | 221139 |
| Item Name | Disk,solid,plain |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Machined Surface Finish | SEMISMOOTH |
| Material Document and Classification | AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE |
| Diameter | 0.313 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM |
| Material | STEEL |
| Thickness | 0.230 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 221139 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| Reference | Meaning |
|---|---|
| 221139 | 3/9 Design control — primary reference Curtiss-Wright Corp |
NSN 5340-00-219-7756 is a Disk,solid,plain, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-219-7756 has 1 manufacturer part number on file: 221139 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 221139: Machined Surface Finish: SEMISMOOTH; Material Document and Classification: AMS 5024 ASSN STD SINGLE MATERIAL RESPONSE; Diameter: 0.313 INCHES NOMINAL IN; Surface Treatment: CHROMIUM. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.