The Switch,pressure, cataloged under National Stock Number 5930-01-064-2444, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-01-064-2444 |
| Primary Part Number | 74890291 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Mounting Method | THREADED HOLE(S) |
| Thread Length | 0.380 INCHES NOMINAL ALL THREADED HOLE IN |
| Longest Vertical Distance Between Mounting Centers | 2.750 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Pressure Connector Type | SWIVEL NUT, INVERTED FLARE, THREADED EXTERNAL SINGLE CONNECTION |
| Inside Diameter | 0.515 INCHES NOMINAL SINGLE CONNECTION IN |
| Thread Class | 2B ALL THREADED HOLE |
| Thread Quantity Per Inch | 20 ALL THREADED HOLE |
| Thread Series Designator | UNS ALL THREADED HOLE |
| Longest Horizontal Distance Between Mounting Centers | 1.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 74890291 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 8963-CD2A-S6 | 5/9 Secondary reference Schneider Electric Usa, Inc. |
| 4880912 | 5/9 Secondary reference Kalmar AC Inc |
NSN 5930-01-064-2444 is a Switch,pressure, manufactured by Kalmar AC Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-064-2444 has 1 manufacturer part number on file: 74890291 (Kalmar AC Inc).
Key specifications for 74890291: Mounting Facility Pattern: FOUR POSITION RECTANGULAR; Mounting Method: THREADED HOLE(S); Thread Length: 0.380 INCHES NOMINAL ALL THREADED HOLE IN; Longest Vertical Distance Between Mounting Centers: 2.750 INCHES NOMINAL IN. 11 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.