MIL-SPEC · Electronic Components
RWR81N42R2FS
Resistor, Fixed, Wire Wound, Nonind
Part NumberRWR81N42R2FS
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-199-8842 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,NONIND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-1.000 TO 1.000
Reactance CharacteristicNONINDUCTIVE
Unpackaged Unit Weight0.350 GRAMS NOMINAL
Power Dissipation Rating In Watts1.000 FREE AIR
Ambient Temp In Deg Celsius At Zer275.0
Terminal TypeWIRE LEAD
Ambient Temp At Full Rated Power25.0 CELSIUS
Reliability Failure Rate Level In0.001
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Body Length0.250 INCHES NOMINAL
Inclosure TypeENCAPSULATED
Cancelled NSN5905-01-033-1874 (cancelled)
ESD/EMICode B — 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 RWR81N42R2FS available?
We can source RWR81N42R2FS 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 RWR81N42R2FS by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR81N42R2FS 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 RWR81N42R2FS?
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 RWR81N42R2FS?
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.