The Switch,thermostatic, cataloged under National Stock Number 5930-01-507-0635, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Selco Products Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-507-0635 |
| Primary Part Number | OA-175 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Selco Products Inc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB, SOLDER LUG |
| Body Height | 0.395 INCHES NOMINAL IN |
| Style Designator | DISC W/FLANGE |
| Operating Temp Rating | 157.0 FAHRENHEIT MINIMUM AND 175.0 FAHRENHEIT MAXIMUM DEGF |
| Contact Stimulus Rating | 157.00 ACTUATION POINT MINIMUM DEGREES FAHRENHEIT AND 175.00 DEACTUATION POINT MAXIMUM DEGREES FAHRENHEIT |
| 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 |
|---|---|
| OA-175 PRIMARY | Selco Products Inc (USA) |
| 0032-25011 | Chromalox, Inc. Div Chromalox (USA) |
| Reference | Meaning |
|---|---|
| D-52558-01 | D/9 Drawing number reference only Chromalox, Inc. Div Chromalox |
| 602SXSHAAS45175F18 | D/9 Drawing number reference only Selco Products Inc |
| OA-175 | C/1 Advisory reference — outside the item-of-supply concept Sel Sales Inc |
NSN 5930-01-507-0635 is a Switch,thermostatic, manufactured by Selco Products Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-507-0635 has 2 manufacturer part numbers on file: OA-175 (Selco Products Inc), 0032-25011 (Chromalox, Inc. Div Chromalox).
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-511-3669, 5930-01-511-3675. Verify interchangeability with system specifications before substitution.
Key specifications for OA-175: Overall Height: 0.570 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: TAB, SOLDER LUG; Body Height: 0.395 INCHES NOMINAL IN. 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.