Weston Aerospace · Electronic Components
R.2.550
Resistor, Fixed, Wire Wound, Induct
Part NumberR.2.550
ManufacturerWeston Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-439-5378 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Style DesignatorTERMINALS EACH END
Distance Between Centerlines Of Mo1.750 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Cubic Measure0.361 CUBIC INCHES
Terminal TypeTAB, SOLDER LUG
Power Dissipation Rating In Watts0.500 FREE AIR
Temp Range Of Temp Coefficient In-55.0 TO 125.0
Inclosure TypeENCAPSULATED
Body Height0.470 INCHES MAXIMUM
Body Length0.880 INCHES MAXIMUM
Terminal Length0.694 INCHES MAXIMUM
Vendor Part NumbersL961543, 6862400-42
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 R.2.550 available?
We can source R.2.550 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 R.2.550 by Weston Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R.2.550 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 R.2.550?
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 R.2.550?
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.