MIL-SPEC · Electronic Components
RBR57L4R020FR
Resistor, Fixed, Wire Wound
Part NumberRBR57L4R020FR
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-255-5879 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Test Data Document81349-MIL-R-39005 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Temp Coefficient Of Resistance In-30.0 TO 30.0
Ambient Temp In Deg Celsius At Zer145.0
Temp Range Of Temp Coefficient In-65.0 TO 145.0
Body Diameter0.500 INCHES NOMINAL
Reliability IndicatorESTABLISHED
Terminal TypeWIRE LEAD
Terminal Length1.500 INCHES MINIMUM
Reliability Failure Rate Level In0.010
Ambient Temp At Full Rated Power125.0 CELSIUS
Reactance CharacteristicNONINDUCTIVE
Cancelled NSN5905-00-763-3433 (cancelled)
ESD/EMICode B — 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 RBR57L4R020FR available?
We can source RBR57L4R020FR 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 RBR57L4R020FR by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RBR57L4R020FR 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 RBR57L4R020FR?
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 RBR57L4R020FR?
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.