Eaton Aerospace · Electronic Components
21C1-3-45
Switch, Pressure
Part Number21C1-3-45
ManufacturerEaton Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-516-8213 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Terminal TypeSOLDER STUD
Contact Voltage Rating In Volts28.0 DC AT SEA LEVEL SINGLE VOLTAGE
Style DesignatorCYLINDRICAL
Overall Diameter1.270 INCHES NOMINAL
Contact Action StimulusINCREASE
Body Diameter1.120 INCHES NOMINAL
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
Overall Length2.500 INCHES NOMINAL
Pressure Switch TypeABSOLUTE
Vendor Part NumbersE17W-H128
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 21C1-3-45 available?
We can source 21C1-3-45 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 21C1-3-45 by Eaton Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21C1-3-45 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 21C1-3-45?
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 21C1-3-45?
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.