The Switch,thermostatic, cataloged under National Stock Number 5930-01-033-7908, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is A. O. Smith Corporation Dba a O Smith Corp. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-033-7908 |
| Primary Part Number | 23898 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | A. O. Smith Corporation Dba a O Smith Corp |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Contact Load Current Rating | 12.5 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 30.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Contact Adjustment Range | +110.00 TO 170.00 ACTUATION POINT DEGREES FAHRENHEIT |
| Temp Sensing Element Type | DISC |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW WITH SCALE |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 120.0 AC AT SEA LEVEL FIRST VOLTAGE |
| 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 |
|---|---|
| 23898 | Stonehaven Engineering Limited (GBR) |
| BP878 | Butyl Products Limited (GBR) |
| 23898 PRIMARY | A. O. Smith Corporation Dba a O Smith Corp (USA) |
| Reference | Meaning |
|---|---|
| 23898 | C/1 Advisory reference — outside the item-of-supply concept Smith a O Water Products Co Div of a O Smith Corp |
| 59T 4100 | 5/2 Secondary reference U.S. Government activity |
| 23898 | 3/9 Design control — primary reference Smith a O Corp Consumer Products Div |
NSN 5930-01-033-7908 is a Switch,thermostatic, manufactured by A. O. Smith Corporation Dba a O Smith Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-033-7908 has 3 manufacturer part numbers on file: 23898 (Stonehaven Engineering Limited), BP878 (Butyl Products Limited), 23898 (A. O. Smith Corporation Dba a O Smith Corp).
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-115-6754, 4820-01-179-6210, 4820-01-195-6044. Verify interchangeability with system specifications before substitution.
Key specifications for 23898: Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Mounting Facility Pattern: TWO POSITION IN-LINE; Contact Load Current Rating: 12.5 AMPERES RESISTIVE LOAD SECOND VOLTAGE. 14 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.