MIL-SPEC · Electronic Components
RER40F4020R
Resistor, Fixed, Wire Wound, Nonind
Part NumberRER40F4020R
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-521-2570 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,NONIND
Federal Supply Class5905 — Resistors
Electrical Resistance402.000 OHMS
Style DesignatorAXIAL TERMINAL (S)
Test Data Document81349-MIL-R-39009 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Mounting Hole Size0.093 INCHES NOMINAL0.093 INCHES NOMINAL
Reliability Failure Rate Level In0.0100.010
Inclosure TypeENCASEDENCASED
Body Height0.320 INCHES NOMINAL0.320 INCHES NOMINAL
Body Width0.334 INCHES NOMINAL0.334 INCHES NOMINAL
Reliability IndicatorESTABLISHEDESTABLISHED
Terminal Length0.266 INCHES NOMINAL0.266 INCHES NOMINAL
Body Length0.600 INCHES NOMINAL0.600 INCHES NOMINAL
Cancelled NSN5905-00-931-1746 (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 RER40F4020R available?
We can source RER40F4020R 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 RER40F4020R by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RER40F4020R 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 RER40F4020R?
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 RER40F4020R?
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.