Samarius Precision Instruments, Inc. · Electronic Components
55-50-178
Resistor, Variable, Wire Wound, Non
Part Number55-50-178
ManufacturerSamarius Precision Instruments, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-168-9316 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,NON
Federal Supply Class5905 — Resistors
Section Quantity2
Overall Length3.063 INCHES MAXIMUM
Rotary Actuator Travel In Angular320.0 NOMINAL
Function Conformity Tolerance Per-3.00 TO 3.00 ALL SECTIONS
Ambient Temp In Deg Celsius Per Se125.0 ALL SECTIONS
Power Dissipation Rating Per Secti3.0 FREE AIR 1ST SECTION FIRST SECTION
Electrical Resistance Per Section25.000 KILOHMS 1ST SECTION AND 5.000 KILOHMS 2ND SECTION
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Resistance Tolerance Per Section I-5.0 TO 5.0 ALL SECTIONS
Device Design TypeAT 12:00 OCLOCK LOCATION NOT OTHERWISE SPECIFIED
Function Characteristic Per SectioALL SECTIONS LINEAR
Vendor Part Numbers128SCAV620-3
ESD/EMICode A — 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 55-50-178 available?
We can source 55-50-178 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 55-50-178 by Samarius Precision Instruments, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 55-50-178 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 55-50-178?
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 55-50-178?
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.