Custom Control Sensors · Electronic Components
604PM21
Switch, Pressure
Part Number604PM21
ManufacturerCustom Control Sensors
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-145-0086 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Overall Height3.100 INCHES NOMINAL
Body Length3.600 INCHES NOMINAL
Longest Vertical Distance Between3.100 INCHES NOMINAL
Contact Voltage Rating In Volts250.0 AC AT SEA LEVEL FIRST VOLTAGE
Thread Quantity Per Inch18 SINGLE PRESSURE CONNECTION
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AND 3.0 AMPERES INDUCTIVE LOAD SECOND VOLTAGE
Nominal Thread Size0.250 INCHES SINGLE PRESSURE CONNECTION
Contact AdjustabilityACTUATION POINT ADJUSTABLE
Contact Adjustment Range+750.00 TO 3000.00 ACTUATION POINT POUNDS PER SQUARE INCH
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Terminal TypeSCREW
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 604PM21 available?
We can source 604PM21 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 604PM21 by Custom Control Sensors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 604PM21 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 604PM21?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 604PM21?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.