Horizon Aerospace · Electronic Components
A4-166-1
Resistor, Fixed, Wire Wound
Part NumberA4-166-1
ManufacturerHorizon Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-090-3664 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Electrical Resistance25.000 KILOHMS
Terminal TypeWIRE LEAD
Body Diameter0.109 INCHES NOMINAL
Power Dissipation Rating In Watts0.100 FREE AIR
Body Length0.300 INCHES NOMINAL
Inclosure TypeENCAPSULATED
Terminal Length2.000 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Ambient Temp In Deg Celsius At Zer145.0
Ambient Temp At Full Rated Power125.0 CELSIUS
Temp Range Of Temp Coefficient In-65.0 TO 145.0
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 A4-166-1 available?
We can source A4-166-1 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 A4-166-1 by Horizon Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A4-166-1 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 A4-166-1?
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 A4-166-1?
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.