KFT Fire Trainer · Electronic Components
20139A
Resistor, Variable, Wire Wound, Non
Part Number20139A
ManufacturerKFT Fire Trainer
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-643-7588 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,NON
Federal Supply Class5905 — Resistors
Effective Electrical Rotation In D300.0 NOMINAL
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
First Flat Length0.344 INCHES NOMINAL
Terminal Type And Quantity3 TAB, SOLDER LUG
Body StyleCYLINDRICAL BUSHING MOUNTED
Body Diameter1.547 INCHES MINIMUM AND 1.578 INCHES MAXIMUM
Device Design TypeAT 6:00 OCLOCK LOCATION NOT OTHERWISE SPECIFIED
Actuator Travel Control FeatureSTOPS
Resistance Tolerance Per Section I-10.0 TO 10.0 SINGLE SECTION
Ambient Temp In Deg Celsius Per Se40.0 SINGLE SECTION
Screw Thread Quantity Per Inch32.0
ESD/EMICode B — ESD/EMI sensitive item
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 20139A available?
We can source 20139A 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 20139A by KFT Fire Trainer obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 20139A 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 20139A?
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 20139A?
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.