Rockwell Automation, Inc. · Electronic Components
E4A503
Resistor, Variable, Nonwire Wound,
Part NumberE4A503
ManufacturerRockwell Automation, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-177-3689 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Section Quantity1
Terminal Type And Quantity3 PIN
Maximum Running Torque4.00 INCH-OUNCES
Ambient Temp In Deg Celsius Per Se70.0 SINGLE SECTION
Effective Electrical Rotation In D280.0 NOMINAL
Terminal LocationLOWER ADJACENT SIDE TWO ROWS
Maximum Starting Torque4.00 INCH-OUNCES
Maximum Stop Torque15.00 INCH-OUNCES
Shaft Bearing TypeSLEEVE
Center To Center Distance Between0.100 INCHES NOMINAL
Mounting MethodTERMINAL
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 E4A503 available?
We can source E4A503 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 E4A503 by Rockwell Automation, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If E4A503 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 E4A503?
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 E4A503?
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.