MIL-SPEC · Electronic Components
RWR81S4640FM
Resistor, Fixed, Wire Wound, Induct
Part NumberRWR81S4640FM
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-083-3188 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-1.000 TO 1.000
Temp Coefficient Of Resistance In-20.0 TO 20.0
Test Data Document81349-MIL-R-39007/9 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE
Electrical Resistance464.000 OHMS
Ambient Temp At Full Rated Power25.0 CELSIUS
Body Length0.250 INCHES NOMINAL
Power Dissipation Rating In Watts1.000 FREE AIR
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Reliability IndicatorESTABLISHED
Reliability Failure Rate Level In1.000
Body Diameter0.085 INCHES NOMINAL
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 RWR81S4640FM available?
We can source RWR81S4640FM 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 RWR81S4640FM by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RWR81S4640FM 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 RWR81S4640FM?
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 RWR81S4640FM?
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.