The Switch,flow, cataloged under National Stock Number 5930-01-251-7974, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Thomas Products Llc. Government technical data includes 8 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 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 | 5930-01-251-7974 |
| Primary Part Number | 18153 |
| Item Name | Switch,flow |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Thomas Products Llc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Mounting Method | LINE |
| Operating Temp Rating | -20.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Contact Stimulus Rating | 1.000 ACTUATION POINT NOMINAL GALLONS PER MINUTE |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| 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 |
|---|---|
| 18153 PRIMARY | Thomas Products Llc (USA) |
NSN 5930-01-251-7974 is a Switch,flow, manufactured by Thomas Products Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-251-7974 has 1 manufacturer part number on file: 18153 (Thomas Products Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5975-01-341-7364, 5305-01-556-6636. Verify interchangeability with system specifications before substitution.
Key specifications for 18153: Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Mounting Method: LINE; Overall Length: 4.000 INCHES NOMINAL IN. 8 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.