Sensor Systems, L.L.C. · Electronic Components
B503
Resistor, Variable, Nonwire Wound,
Part NumberB503
ManufacturerSensor Systems, L.L.C.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-212-3864 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Undercut Diameter0.745 INCHES NOMINAL
Actuator TypeSINGLE SHAFT
Undercut Width0.0570 INCHES MINIMUM
Resistance Tolerance Per Section I-20.0 TO 20.0 SINGLE SECTION
Body Length0.435 INCHES MINIMUM
Shaft Length0.500 INCHES NOMINAL
Mounting Lip Depth0.0620 INCHES MINIMUM
Section Quantity1
Pilot Length0.0620 INCHES MINIMUM
Electrical Resistance Per Section20000.000 OHMS SINGLE SECTION
Body Diameter0.750 INCHES NOMINAL
Vendor Part Numbers2210285-1
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 B503 available?
We can source B503 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 B503 by Sensor Systems, L.L.C. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B503 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 B503?
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 B503?
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.