MIL-SPEC · Electronic Components
RER50F4990R
Resistor, Fixed, Wire Wound, Nonind
Part NumberRER50F4990R
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-306-2784 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,NONIND
Federal Supply Class5905 — Resistors
Electrical Resistance499.000 OHMS
Temp Coefficient Of Resistance In-30.0 TO 30.0
Reactance CharacteristicNONINDUCTIVE
Inclosure TypeENCASED
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Style DesignatorAXIAL TERMINAL (S)
Terminal Length0.376 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
Body Height0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM
Terminal TypeTAB, SOLDER LUG
Reliability Failure Rate Level In0.010
Unpackaged Unit Weight16.5 GRAMS NOMINAL
Cancelled NSN5905-00-789-5472 (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 RER50F4990R available?
We can source RER50F4990R 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 RER50F4990R by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RER50F4990R 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 RER50F4990R?
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 RER50F4990R?
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.