Custom Control Sensors · Electronic Components
646PE21
Switch, Pressure
Part Number646PE21
ManufacturerCustom Control Sensors
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-018-1734 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Distance Between Mounting Facility4.250 INCHES NOMINAL
Contact Adjustment TypeINTERNAL DEACTUATION POINT SCREW AND INTERNAL ACTUATION POINT SCREW
Pressure Switch TypeGAGE
Thread Series DesignatorNPT SINGLE PRESSURE CONNECTION
Style DesignatorRECTANGULAR W/BRACKET
Pressure Connector TypeDOUBLE COMPRESSION, THREADED INTERNAL SINGLE CONNECTION
Overall Length6.240 INCHES NOMINAL
Contact Load Current Rating400.0 MILLIAMPERES RESISTIVE LOAD AND 30.0 MILLIAMPERES INDUCTIVE LOAD FOURTH VOLTAGE
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Mounting MethodBRACKET(S)
Mounting Facility PatternTWO POSITION IN-LINE
Cancelled NSN5930-00-811-8514 (cancelled)
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 646PE21 available?
We can source 646PE21 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 646PE21 by Custom Control Sensors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 646PE21 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 646PE21?
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 646PE21?
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.