The Switch,pressure, cataloged under National Stock Number 5930-01-167-4741, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Automatic Switch Company Dba Asco. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-167-4741 |
| Primary Part Number | SD31D |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Automatic Switch Company Dba Asco |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Proof Pressure | 50.00 POUNDS PER SQUARE INCH GAGE LBS |
| Mounting Method | BASE AND SLOT |
| Contact Adjustment Range | +0.00 TO 30.00 ACTUATION POINT INCHES OF MERCURY |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT HEX NUT WITH SCALE |
| Features Provided | ELECTRICAL ACCESS PORT |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 1.20 DIFFERENTIAL POINT NOMINAL INCHES OF MERCURY |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE, MANUAL RESET AND ACTUATION POINT ADJUSTABLE |
| Hazardous Locations/environmental Protection | WATERTIGHT |
| 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 |
|---|---|
| SD31D PRIMARY | Automatic Switch Company Dba Asco (USA) |
| Reference | Meaning |
|---|---|
| SD31A/TA31A11 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 5930-01-167-4741 is a Switch,pressure, manufactured by Automatic Switch Company Dba Asco, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-167-4741 has 1 manufacturer part number on file: SD31D (Automatic Switch Company Dba Asco).
Key specifications for SD31D: Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Proof Pressure: 50.00 POUNDS PER SQUARE INCH GAGE LBS; Mounting Method: BASE AND SLOT. 12 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.