The Switch,thermostatic, cataloged under National Stock Number 5930-01-511-3669, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Chromalox, Inc. Div Chromalox. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-511-3669 |
| Primary Part Number | 0135-26049-0001 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Chromalox, Inc. Div Chromalox |
| 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 |
|---|---|
| 0135-26049-0001 PRIMARY | Chromalox, Inc. Div Chromalox (USA) |
| D-52558-01 ITEM 23 | Chromalox, Inc. Div Chromalox (USA) |
| Reference | Meaning |
|---|---|
| D-52558-01 | D/9 Drawing number reference only Chromalox, Inc. Div Chromalox |
NSN 5930-01-511-3669 is a Switch,thermostatic, manufactured by Chromalox, Inc. Div Chromalox, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-511-3669 has 2 manufacturer part numbers on file: 0135-26049-0001 (Chromalox, Inc. Div Chromalox), D-52558-01 ITEM 23 (Chromalox, Inc. Div Chromalox).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-511-3675. Verify interchangeability with system specifications before substitution.
Key specifications for 0135-26049-0001: End Item Identification: FUEL OIL SERVICE HEATER CONTROLLER. 0 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.