The Switch,thermostatic, cataloged under National Stock Number 5930-01-256-3109, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-256-3109 |
| Primary Part Number | 807921 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Contact Adjustment Range | +60.00 TO 250.00 ACTUATION POINT DEGREES FAHRENHEIT |
| Temp Sensing Element Type | IMMERSION WELL |
| Nonpile-Up Contact Arrangement | 2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Media for Which Designed | LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| 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 |
|---|---|
| 807921 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| 300-048518-013 | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| 048518-013 | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
NSN 5930-01-256-3109 is a Switch,thermostatic, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-256-3109 has 1 manufacturer part number on file: 807921 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 807921: Contact Adjustment Range: +60.00 TO 250.00 ACTUATION POINT DEGREES FAHRENHEIT; Temp Sensing Element Type: IMMERSION WELL; Nonpile-Up Contact Arrangement: 2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION; Media for Which Designed: LIQUID. 5 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.