Samarius Precision Instruments · Electronic Components
55-857
Resistor, Variable, Wire Wound, Non
Part Number55-857
ManufacturerSamarius Precision Instruments
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-539-3823 (NSN)
Federal Item NameRESISTOR,VARIABLE,WIRE WOUND,NON
Federal Supply Class5905 — Resistors
Body Length1.250 INCHES NOMINAL
Features ProvidedNONMETALLIC SHAFT
Mounting MethodTERMINAL
Rotary Actuator Travel In Angular312.0 NOMINAL
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Terminal Type And Quantity3 SOLDER STUD
Resistance Tolerance Per Section I-5.0 TO 5.0 SINGLE SECTION
Ambient Temp In Deg Celsius Per Se65.0 SINGLE SECTION
Electrical Resistance Per Section50.000 KILOHMS SINGLE SECTION
Actuator Travel Control FeatureSTOPS
Temp Coefficient Of Resistance Per-40.0 TO 40.0 SINGLE SECTION
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 55-857 available?
We can source 55-857 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 55-857 by Samarius Precision Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 55-857 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 55-857?
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 55-857?
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.