MIL-SPEC · Electronic Components
RBR56L181R2AR
Resistor, Fixed, Wire Wound
Part NumberRBR56L181R2AR
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-445-3089 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Electrical Resistance181.200 OHMS
Reliability Failure Rate Level In0.010
Ambient Temp At Full Rated Power125.0 CELSIUS
Terminal TypeWIRE LEAD
Body Length0.312 INCHES MINIMUM AND 0.364 INCHES MAXIMUM
Power Dissipation Rating In Watts0.125 FREE AIR
Reliability IndicatorESTABLISHED
Inclosure TypeENCAPSULATED
Ambient Temp In Deg Celsius At Zer145.0
Body Diameter0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM
Resistance Tolerance In Percent-0.050 TO 0.050
Cancelled NSN5905-01-065-4048 (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 RBR56L181R2AR available?
We can source RBR56L181R2AR 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 RBR56L181R2AR by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RBR56L181R2AR 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 RBR56L181R2AR?
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 RBR56L181R2AR?
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.