Cts Corp. Electromechanical Div · Electronic Components
F4128
Resistor, Variable, Nonwire Wound,
Part NumberF4128
ManufacturerCts Corp. Electromechanical Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-087-4327 (NSN)
Federal Item NameRESISTOR,VARIABLE,NONWIRE WOUND,
Federal Supply Class5905 — Resistors
Reliability IndicatorNOT ESTABLISHED
Section Quantity1
Overall Diameter1.425 INCHES NOMINAL
Shaft Diameter0.250 INCHES NOMINAL
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE
Power Dissipation Rating Per Secti2.0 FREE AIR SINGLE SECTION
Resistance Tolerance Per Section I-5.0 TO 5.0 SINGLE SECTION
Terminal Type And Quantity3 TAB, SOLDER LUG
Electrical Resistance Per Section3.0 KILOHMS SINGLE SECTION
Nonturn Device Radius0.531 INCHES NOMINAL
Screw Thread Diameter0.375 INCHES NOMINAL
Vendor Part NumbersLF4128
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 F4128 available?
We can source F4128 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 F4128 by Cts Corp. Electromechanical Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If F4128 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 F4128?
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 F4128?
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.