MIL-SPEC · Electronic Components
RWR81S1R18FS
Resistor, Fixed, Wire Wound, Induct
Part NumberRWR81S1R18FS
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-400-5917 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Test Data Document81349-MIL-R-37007 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Temp Coefficient Of Resistance In-650.0 TO 650.0
Terminal Length1.500 INCHES MINIMUM
Body Diameter0.065 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
Body Length0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
Reliability Failure Rate Level In0.001
Ambient Temp In Deg Celsius At Zer275.0
Ambient Temp At Full Rated Power25.0 CELSIUS
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Inclosure TypeENCAPSULATED
Reliability IndicatorESTABLISHED
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 RWR81S1R18FS available?
We can source RWR81S1R18FS 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 RWR81S1R18FS by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR81S1R18FS 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 RWR81S1R18FS?
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 RWR81S1R18FS?
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.