Lockheed Martin Corporation · Electronic Components
561721
Resistor, Variable, Wire Wound, Pre
Part Number561721
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-153-8235 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,PRE
Federal Supply Class5905 — Resistors
Shaft Length0.115 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
Pilot Length0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM
Undercut Width0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM
Electrical Resistance Per Section5.0 KILOHMS SINGLE SECTION
Features ProvidedNONMETALLIC SHAFT
Ambient Temp In Deg Celsius Per Se125.0 SINGLE SECTION
Mounting MethodCLAMP RING(S)
Rotary Actuator Travel In Angular360.0 NOMINAL
Maximum Running Torque0.30 INCH-OUNCES
Fragility FactorMODERATELY RUGGED
Shaft Runout0.001 INCHES
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 561721 available?
We can source 561721 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 561721 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 561721 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 561721?
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 561721?
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.