Avionics Specialties, Inc. · Electronic Components
123-502
Switch, Thermostatic
Part Number123-502
ManufacturerAvionics Specialties, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-359-4089 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Terminal TypeTAB, SOLDER LUG
Overall Height0.756 INCHES MINIMUM AND 0.788 INCHES MAXIMUM
Thread Length0.171 INCHES MINIMUM AND 0.203 INCHES MAXIMUM ALL THREADED STUD
Temp Sensing Element TypeINTERNAL SENSOR
Contact Stimulus Rating125.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 95.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
Thread Class2A ALL THREADED STUD
Nominal Thread Size0.138 INCHES ALL THREADED STUD
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL THREADED STUD
Thread Quantity Per Inch32 ALL THREADED STUD
Vendor Part Numbers3100-43-655, 3100-43-194
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnUnknown
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 123-502 available?
We can source 123-502 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 123-502 by Avionics Specialties, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 123-502 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 123-502?
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 123-502?
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.