MIL-SPEC · Electronic Components
RW81U40R2F
Resistor, Fixed, Wire Wound
Part NumberRW81U40R2F
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-011-8259 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Body Length0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
Ambient Temp At Full Rated Power25.0 CELSIUS
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Ambient Temp In Deg Celsius At Zer275.0
Power Dissipation Rating In Watts1.000 FREE AIR
Reliability IndicatorNOT ESTABLISHED
Terminal Length1.375 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
Cubic Measure0.002 CUBIC INCHES
Inclosure TypeENCAPSULATED
Terminal TypeWIRE LEAD
Body Diameter0.065 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
Cancelled NSN5905-00-912-1697 (cancelled)
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 RW81U40R2F available?
We can source RW81U40R2F 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 RW81U40R2F by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RW81U40R2F 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 RW81U40R2F?
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 RW81U40R2F?
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.