The Switch,thermostatic, cataloged under National Stock Number 5930-00-451-4739, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Smith a O Water Products Co Div of a O Smith Corp. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-451-4739 |
| Primary Part Number | 23897-1 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Smith a O Water Products Co Div of a O Smith Corp |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Height | 2.578 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.188 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT POINTER AND EXTERNAL DEACTUATION POINT POINTER |
| Distance Between Mounting Facility Centers | 2.000 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED |
| Media for Which Designed | GAS |
| Contact Adjustability | DEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 120.0 AC AT SEA LEVEL SECOND 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 |
|---|---|
| 23897-1 PRIMARY | Smith a O Water Products Co Div of a O Smith Corp (USA) |
| Reference | Meaning |
|---|---|
| NR/500 | 5/9 Secondary reference Smith a O Corp Consumer Products Div |
| NR351 | 5/9 Secondary reference Smith a O Corp Consumer Products Div |
NSN 5930-00-451-4739 is a Switch,thermostatic, manufactured by Smith a O Water Products Co Div of a O Smith Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-451-4739 has 1 manufacturer part number on file: 23897-1 (Smith a O Water Products Co Div of a O Smith Corp).
Key specifications for 23897-1: Overall Height: 2.719 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Mounting Facility Pattern: TWO POSITION IN-LINE. 15 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.