Custom Control Sensors · Electronic Components
645DB
Switch, Pressure
Part Number645DB
ManufacturerCustom Control Sensors
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-007-6486 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Style DesignatorRECTANGULAR
Media For Which DesignedGAS OR LIQUID
Body Length3.008 INCHES MAXIMUM
Contact Load Current Rating400.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE
Unthreaded Mounting Hole Diameter0.219 INCHES MINIMUM AND 0.233 INCHES MAXIMUM
Longest Horizontal Distance Betwee2.120 INCHES NOMINAL
Contact Voltage Rating In Volts125.0 DC AT SEA LEVEL SECOND VOLTAGE
Terminal TypeWIRE LEAD
Mounting MethodUNTHREADED HOLE(S)
Contact Action StimulusINCREASE
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
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 645DB available?
We can source 645DB 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 645DB by Custom Control Sensors obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 645DB 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 645DB?
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 645DB?
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.