The Switch,pressure, cataloged under National Stock Number 5930-00-855-3938, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5930-00-855-3938 |
| Primary Part Number | 12380228 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | CANCELLED |
| Body Diameter | 1.437 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB W/SCREW |
| Overall Diameter | 1.690 INCHES NOMINAL IN |
| Proof Pressure | 150.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 8.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 4.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Mounting Method | INLET CONNECTION |
| Contact Adjustment Range | +1.00 TO 7.00 ACTUATION POINT POUNDS PER SQUARE INCH AND +1.00 TO 7.00 DEACTUATION POINT POUNDS PER SQUARE INCH |
| Style Designator | CYLINDRICAL |
| Outside Diameter | 0.125 INCHES NOMINAL SINGLE CONNECTION IN |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | INTERNAL DEACTUATION POINT SCREW AND INTERNAL ACTUATION POINT SCREW |
| Nominal Thread Size | 0.125 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 0.750 INCHES NOMINAL IN |
| Pressure Connector Type | FLARED, THREADED EXTERNAL SINGLE CONNECTION |
| Nonpile-Up Contact Arrangement | 1 TWO CIRCUIT, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 4.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 3.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH AND 1.00 DIFFERENTIAL POINT NOMINAL POUNDS PER SQUARE INCH |
| Thread Quantity Per Inch | 27 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | PTF-SAE SHORT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT ADJUSTABLE, PRESET AND ACTUATION POINT ADJUSTABLE, PRESET |
| Contact Voltage Rating in Volts | 24.0 DC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 6.0 DC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 12.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12380228 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12298601 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 76579-4 | 3/2 Design control — primary reference U.S. Government activity |
| 76579-4 | 5/9 Secondary reference Hobbs Corp |
| 1223-450 | C/1 Advisory reference — outside the item-of-supply concept Koehring Co |
| 1223-450 | C/1 Advisory reference — outside the item-of-supply concept Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
| 695145 | C/1 Advisory reference — outside the item-of-supply concept Caterpillar Inc Div Caterpillar Defense |
| M-4012 | 5/9 Secondary reference Hobbs Corp |
| 76579 | 5/9 Secondary reference Hobbs Corp |
| JHP124-074 | 5/9 Secondary reference Hollingsworth John R Co |
| 76579-4 | 5/9 Secondary reference Stewart-Warner Corp Hobbs Div |
| 10087161 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 79Q495D5 | C/1 Advisory reference — outside the item-of-supply concept Ppm Cranes Inc |
| M4012-4 | 5/9 Secondary reference Hobbs Corp |
NSN 5930-00-855-3938 is a Switch,pressure, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5930, Switches. Status: cancelled.
NSN 5930-00-855-3938 has 2 manufacturer part numbers on file: 12380228 (U S Army Tank Automotive Command Amsta-Im-Mm), 12298601 (U S Army Tank Automotive Command Amsta-Im-Mm).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-990-1638, 6150-01-682-6894. Verify interchangeability with system specifications before substitution.
Key specifications for 12380228: Body Diameter: 1.437 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: TAB W/SCREW; Overall Diameter: 1.690 INCHES NOMINAL IN. 26 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.
NSN 5930-00-855-3938 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.