The Switch,thermostatic, cataloged under National Stock Number 5930-01-343-4749, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Texas Instruments Incorporated. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5930-01-343-4749 |
| Primary Part Number | 21561-3-23-1 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Texas Instruments Incorporated |
| Status | ACTIVE |
| Supplementary Features | COGNIZANT SERVICE - UNITED KINGDOM ARMY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21561-3-23-1 | Raytheon Systems Ltd (GBR) |
| FE650-4000-002N | Bae Systems Maritime Services (GBR) |
| 21561-3-23-1 PRIMARY | Texas Instruments Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 21561-3-23-1 | 5/9 Secondary reference Raytheon Systems Ltd (weapons Support Group) |
NSN 5930-01-343-4749 is a Switch,thermostatic, manufactured by Texas Instruments Incorporated, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-343-4749 has 3 manufacturer part numbers on file: 21561-3-23-1 (Raytheon Systems Ltd), FE650-4000-002N (Bae Systems Maritime Services), 21561-3-23-1 (Texas Instruments Incorporated).
Key specifications for 21561-3-23-1: Supplementary Features: COGNIZANT SERVICE - UNITED KINGDOM ARMY; End Item Identification: RAPIER FSC,TEXAS INSTRUMENTS. 1 specification is 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.