The Switch,thermostatic, cataloged under National Stock Number 5930-01-189-8537, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-189-8537 |
| Primary Part Number | 75A771157-9AAA |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Width Across Flats | 0.690 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Mounting Method | THREADED STUD(S) |
| Body Length | 1.170 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Media for Which Designed | GAS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 75A771157-9AAA | Bae Systems (operations) Limited (GBR) |
| 75A771157-9AAA PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 75A771157-9AAA | 5/9 Secondary reference British Aerospace (military Aircraft & Aerostructures) |
| 75A771157-9AAA | 5/9 Secondary reference Bae Systems Plc |
NSN 5930-01-189-8537 is a Switch,thermostatic, manufactured by The Boeing Company Div Defense, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-189-8537 has 2 manufacturer part numbers on file: 75A771157-9AAA (Bae Systems (operations) Limited), 75A771157-9AAA (The Boeing Company Div Defense).
Key specifications for 75A771157-9AAA: Width Across Flats: 0.690 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Mounting Method: THREADED STUD(S). 7 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.