The Switch,thermostatic, cataloged under National Stock Number 5930-01-561-0553, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Honeywell Redmond Defense. 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 | 5930-01-561-0553 |
| Primary Part Number | 575T121B131 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Honeywell Redmond Defense |
| Status | ACTIVE |
| Body Diameter | 0.640 INCHES NOMINAL IN |
| Mounting Method | FLANGE |
| Body Height | 0.467 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.133 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN |
| Style Designator | DISC W/FLANGE |
| Distance Between Mounting Facility Centers | 0.930 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE |
| Mounting Slot Width | 0.133 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 575T121B131 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Honeywell Redmond Defense (USA) |
NSN 5930-01-561-0553 is a Switch,thermostatic, manufactured by Honeywell International Inc. Dba Honeywell International Div Honeywell Redmond Defense, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-561-0553 has 1 manufacturer part number on file: 575T121B131 (Honeywell International Inc. Dba Honeywell International Div Honeywell Redmond Defense).
Key specifications for 575T121B131: Body Diameter: 0.640 INCHES NOMINAL IN; Overall Height: 0.530 INCHES NOMINAL IN; Mounting Method: FLANGE; Body Height: 0.467 INCHES NOMINAL IN. 8 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.