The Switch,thermostatic, cataloged under National Stock Number 5930-01-649-9139, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 — Switches (FSG 59) |
| Manufacturers | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (CAGE 53986); Ashcroft Inc Dba Heise (CAGE 049X3) |
| Parameter | Value |
|---|---|
| NSN | 5930-01-649-9139 |
| Primary Part Number | T4-32-T05-030-XFS-75-205 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| T4-32-T05-030-XFS-75-205 | Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc (USA) |
| T4-32-T05-030-XFS-75-205 | Ashcroft Inc Dba Heise (USA) |
| Reference | Meaning |
|---|---|
| 64046-1 | 3/2 Design control — primary reference U.S. Government activity |
| 29071 ITEM NO 14 | D/9 Drawing number reference only U.S. Government activity |
NSN 5930-01-649-9139 is a Switch,thermostatic, manufactured by Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-649-9139 has 2 manufacturer part numbers on file: T4-32-T05-030-XFS-75-205 (Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc), T4-32-T05-030-XFS-75-205 (Ashcroft Inc Dba Heise).
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.