Vishay Sprague · Electronic Components
42-9-139-252
Resistor, Variable, Wire Wound, Non
Part Number42-9-139-252
ManufacturerVishay Sprague
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-878-6571 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,NON
Federal Supply Class5905 — Resistors
Mounting Hole Diameter0.088 INCHES MINIMUM
Mounting Facility Quantity2
Body Length1.250 INCHES NOMINAL
Body Height0.320 INCHES NOMINAL
Electrical Resistance Per Section2.5 KILOHMS SINGLE SECTION
Overall Width0.190 INCHES NOMINAL
Overall Length1.320 INCHES NOMINAL
Ambient Temp In Deg Celsius Per Se70.0 SINGLE SECTION
Temp Coefficient Of Resistance Per-50.0 TO 50.0 SINGLE SECTION
Actuator Travel Control FeatureCLUTCH
Power Dissipation Rating Per Secti1.0 FREE AIR SINGLE SECTION
Vendor Part NumbersSMB526651-15
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 42-9-139-252 available?
We can source 42-9-139-252 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 42-9-139-252 by Vishay Sprague obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 42-9-139-252 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 42-9-139-252?
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 42-9-139-252?
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.