Weston Aerospace · Electronic Components
R.2.554
Resistor, Fixed, Wire Wound
Part NumberR.2.554
ManufacturerWeston Aerospace
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-105-9623 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-1.000 TO 1.000
Style DesignatorTERMINALS EACH END
Temp Coefficient Of Resistance In-50.0 TO 50.0
Mounting Hole Size0.260 INCHES NOMINAL
Body Length0.880 INCHES MAXIMUM
Terminal TypeTAB, SOLDER LUG
Power Dissipation Rating In Watts0.500 FREE AIR
Reliability IndicatorNOT ESTABLISHED
Temp Range Of Temp Coefficient In-55.0 TO 125.0
Body Width0.500 INCHES MAXIMUM
Cubic Measure0.361 CUBIC INCHES
Vendor Part Numbers6862400-21
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.2.554 available?
We can source R.2.554 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.2.554 by Weston Aerospace obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R.2.554 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.2.554?
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.2.554?
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.