The Switch,pressure, cataloged under National Stock Number 5930-00-445-3264, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Psi-Peripheral Support. Government technical data includes 17 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-445-3264 |
| Primary Part Number | KT-89 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Psi-Peripheral Support |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | QUICK DISCONNECT, MALE |
| Overall Diameter | 3.219 INCHES MAXIMUM IN |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | INLET CONNECTION |
| Style Designator | CYLINDRICAL |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW |
| Nominal Thread Size | 0.125 INCHES SINGLE PRESSURE CONNECTION IN |
| Pressure Connector Type | FLARED, THREADED EXTERNAL SINGLE CONNECTION |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 5.00 ACTUATION POINT NOMINAL INCHES OF WATER AND 2.25 DEACTUATION POINT NOMINAL INCHES OF WATER AND 2.75 DIFFERENTIAL POINT NOMINAL INCHES OF WATER |
| Thread Quantity Per Inch | 27 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPTF SINGLE PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL SINGLE 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 |
|---|---|
| KT-89 PRIMARY | Psi-Peripheral Support (USA) |
| Reference | Meaning |
|---|---|
| 731-689-9 | 5/9 Secondary reference U.S. Government activity |
| 64-1676 | 5/9 Secondary reference Psi-Peripheral Support |
| S64-1676 | 5/9 Secondary reference Psi-Peripheral Support |
| 731-667-9 | 5/9 Secondary reference U.S. Government activity |
| S64-1676 | C/1 Advisory reference — outside the item-of-supply concept Miltope Corporation |
NSN 5930-00-445-3264 is a Switch,pressure, manufactured by Psi-Peripheral Support, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-445-3264 has 1 manufacturer part number on file: KT-89 (Psi-Peripheral Support).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-675-8836. Verify interchangeability with system specifications before substitution.
Key specifications for KT-89: Contact Action Stimulus: INCREASE; Terminal Type: QUICK DISCONNECT, MALE; Overall Diameter: 3.219 INCHES MAXIMUM IN; Contact Load Current Rating: 15.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE. 17 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.