Bei Sensors & Systems · Electronic Components
421SL1K
Resistor, Variable, Nonwire Wound,
Part Number421SL1K
ManufacturerBei Sensors & Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-091-4540 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Body Width0.625 INCHES NOMINAL
Body Length4.000 INCHES NOMINAL
Shaft Length0.560 INCHES NOMINAL
Shaft StyleROUND
Terminal Type And Quantity3 TAB, SOLDER LUG
Body Height0.770 INCHES NOMINAL
Actuator TypeSINGLE SHAFT
Power Dissipation Rating Per Secti2.5 FREE AIR SINGLE SECTION
Longitudinal Actuator Travel2.75 INCHES NOMINAL
Ambient Temp In Deg Celsius Per Se125.0 SINGLE SECTION
Electrical Resistance Per Section1.000 KILOHMS SINGLE SECTION
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 421SL1K available?
We can source 421SL1K 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 421SL1K by Bei Sensors & Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 421SL1K 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 421SL1K?
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 421SL1K?
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.