MIL-SPEC · Electronic Components
RER65F4021R
Resistor, Fixed, Wire Wound, Induct
Part NumberRER65F4021R
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-021-3105 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Terminal Width0.140 INCHES MINIMUM0.140 INCHES MINIMUM
Heat Sink Thickness0.040 INCHES0.040 INCHES
Body Height0.406 INCHES NOMINAL0.406 INCHES NOMINAL
Terminal Length0.312 INCHES NOMINAL0.312 INCHES NOMINAL
MaterialALUMINUM ALLOY HEAT SINK
Heat Sink Height2.000 INCHES2.000 INCHES
Ambient Temp At Full Rated Power25.0 CELSIUS25.0 CELSIUS
Reliability IndicatorESTABLISHEDESTABLISHED
Mounting Hole Size0.094 INCHES NOMINAL0.094 INCHES NOMINAL
Terminal TypeTAB, SOLDER LUGTAB, SOLDER LUG
Inclosure TypeENCASEDENCASED
Cancelled NSN5905-00-719-4678 (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 RER65F4021R available?
We can source RER65F4021R 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 RER65F4021R by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RER65F4021R 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 RER65F4021R?
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 RER65F4021R?
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.