General Dynamics Motion Control LLC · Electronic Components
21187A
Resistor, Variable, Nonwire Wound,
Part Number21187A
ManufacturerGeneral Dynamics Motion Control LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-097-7501 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Pilot Length0.0620 INCHES NOMINAL
Section Quantity1
Function Conformity Tolerance Per-0.50 TO 0.50 SINGLE SECTION
Maximum Running Torque0.50 INCH-OUNCES
Shaft End Play0.005 INCHES
Lateral Runout0.002 INCHES
Shaft Runout0.001 INCHES
Pilot Diameter Runout0.0025 INCHES
Maximum Starting Torque0.50 INCH-OUNCES
Electrical Resistance Per Section3.5 KILOHMS SINGLE SECTION
Bearing TypeBALL SHAFT
Vendor Part NumbersZA82316, 6219-135-0, ZA71000
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 21187A available?
We can source 21187A 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 21187A by General Dynamics Motion Control LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21187A 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 21187A?
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 21187A?
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.