The Switch,thermostatic, cataloged under National Stock Number 5930-00-489-4500, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Alter Harry Co the Div of T E C. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-489-4500 |
| Primary Part Number | 73537 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Alter Harry Co the Div of T E C |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Contact Adjustment Range | +60.00 TO 90.00 ACTUATION POINT DEGREES FAHRENHEIT |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT KNOB WITH SCALE |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 24.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| 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 |
|---|---|
| 73537 PRIMARY | Alter Harry Co the Div of T E C (USA) |
| Reference | Meaning |
|---|---|
| T87F1826 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-00-489-4500 is a Switch,thermostatic, manufactured by Alter Harry Co the Div of T E C, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-489-4500 has 1 manufacturer part number on file: 73537 (Alter Harry Co the Div of T E C).
1 possible match (shared part number, not a government interchangeability claim): 3040-00-767-9020. Verify interchangeability with system specifications before substitution.
Key specifications for 73537: Contact Action Stimulus: INCREASE; Contact Adjustment Range: +60.00 TO 90.00 ACTUATION POINT DEGREES FAHRENHEIT; Contact Adjustment Type: EXTERNAL ACTUATION POINT KNOB WITH SCALE; Nonpile-Up Contact Arrangement: 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED. 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.