The Switch,pressure, cataloged under National Stock Number 5930-01-017-8220, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ederer Inc Star Cranes Div. Government technical data includes 27 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-017-8220 |
| Primary Part Number | 51561PC18 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Ederer Inc Star Cranes Div |
| Status | ACTIVE |
| Frequency in Hertz | 50.0 AND 60.0 SECOND VOLTAGE |
| Frequency in Hertz | 50.0 AND 60.0 FIRST VOLTAGE |
| Frequency in Hertz | 50.0 AND 60.0 THIRD VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Proof Pressure | 7500.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD AND 15.0 AMPERES INDUCTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD AND 15.0 AMPERES INDUCTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD AND 15.0 AMPERES INDUCTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 400.0 MILLIAMPERES RESISTIVE LOAD AND 30.0 MILLIAMPERES INDUCTIVE LOAD FIFTH VOLTAGE |
| Contact Load Current Rating | 6.0 AMPERES RESISTIVE LOAD AND 5.0 AMPERES INDUCTIVE LOAD FOURTH VOLTAGE |
| Mounting Method | BRACKET(S) |
| Contact Adjustment Range | +2500.00 TO 5000.00 ACTUATION POINT POUNDS PER SQUARE INCH AND +1700.00 TO 4200.00 DEACTUATION POINT POUNDS PER SQUARE INCH |
| Style Designator | RECTANGULAR W/BRACKET |
| Longest Vertical Distance Between Mounting Centers | 3.100 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | INTERNAL ACTUATION POINT SERRATED NUT AND INTERNAL DEACTUATION POINT SERRATED NUT |
| Features Provided | ELECTRICAL ACCESS PORT |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Pressure Connector Type | DOUBLE COMPRESSION, THREADED INTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -30.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY, TWO POSITIONS MAINTAINED |
| Media for Which Designed | GAS |
| Thread Quantity Per Inch | 18 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5930-01-017-8220 is a Switch,pressure, manufactured by Ederer Inc Star Cranes Div, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-017-8220 has 2 manufacturer part numbers on file: 51561PC18 (Ederer Inc Star Cranes Div), 604PR31 (Custom Control Sensors, Llc).
Key specifications for 51561PC18: Overall Height: 3.100 INCHES NOMINAL IN; Frequency in Hertz: 50.0 AND 60.0 SECOND VOLTAGE; Frequency in Hertz: 50.0 AND 60.0 FIRST VOLTAGE; Frequency in Hertz: 50.0 AND 60.0 THIRD VOLTAGE. 27 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.