Kalmar Ac Inc. · Electronic Components
74890291
Switch, Pressure
Part Number74890291
ManufacturerKalmar Ac Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-064-2444 (NSN)
Federal Item NameSWITCH,PRESSURE
Federal Supply Class5930 — Switches
Thread Class2B ALL THREADED HOLE
Thread Series DesignatorUNS ALL THREADED HOLE
Thread Quantity Per Inch20 ALL THREADED HOLE
Longest Horizontal Distance Betwee1.000 INCHES NOMINAL
Overall Width3.440 INCHES NOMINAL
Overall Length4.940 INCHES NOMINAL
Pressure Switch TypeGAGE
Mounting Facility PatternFOUR POSITION RECTANGULAR
Pressure Connector TypeSWIVEL NUT, INVERTED FLARE, THREADED EXTERNAL SINGLE CONNECTION
Thread Length0.380 INCHES NOMINAL ALL THREADED HOLE
Longest Vertical Distance Between2.750 INCHES NOMINAL
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 74890291 available?
We can source 74890291 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 74890291 by Kalmar Ac Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 74890291 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 74890291?
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 74890291?
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.