The Switch,thermostatic, cataloged under National Stock Number 5930-01-377-3421, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is W. & O. Supply, Inc. Dba Emi Div Emi. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-377-3421 |
| Primary Part Number | 42030 ITEM 29 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | W. & O. Supply, Inc. Dba Emi Div Emi |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Media for Which Designed | GAS OR LIQUID |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| Hazardous Locations/environmental Protection | DUSTPROOF |
| 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 |
|---|---|
| 42030 ITEM 29 PRIMARY | W. & O. Supply, Inc. Dba Emi Div Emi (USA) |
| Reference | Meaning |
|---|---|
| 9999-42030 ITEM 29 | D/9 Drawing number reference only W. & O. Supply, Inc. Dba Emi Div Emi |
| 2E245 | 3/9 Design control — primary reference Grainger Div of W W Grainger Inc |
| 5300-00002 | 5/9 Secondary reference W. & O. Supply, Inc. Dba Emi Div Emi |
NSN 5930-01-377-3421 is a Switch,thermostatic, manufactured by W. & O. Supply, Inc. Dba Emi Div Emi, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-377-3421 has 1 manufacturer part number on file: 42030 ITEM 29 (W. & O. Supply, Inc. Dba Emi Div Emi).
Key specifications for 42030 ITEM 29: Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Special Features: TEMPERATURE SENSOR; Media for Which Designed: GAS OR 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.