Measurement Systems Inc. · Electronic Components
503111
Resistor, Variable, Wire Wound, Pre
Part Number503111
ManufacturerMeasurement Systems Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-149-6939 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,PRE
Federal Supply Class5905 — Resistors
Shaft Diameter0.1248 INCHES MAXIMUM
Pilot Length0.0620 INCHES NOMINAL
Undercut Width0.0570 INCHES MINIMUM
Bearing TypeBALL SHAFT
Features ProvidedHUMIDITY PROOF
Ambient Temp In Deg Celsius Per Se125.0 ALL SECTIONS
Mechanical Backlash In Deg Angular0.1
Shaft Radial Play0.003 INCHES
Function Conformity Tolerance Per-0.50 TO 0.50 ALL SECTIONS
Rotary Actuator Travel In Angular360.0 NOMINAL
Maximum Starting Torque0.27 INCH-OUNCES
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 503111 available?
We can source 503111 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 503111 by Measurement Systems Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 503111 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 503111?
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 503111?
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.