MIL-SPEC · Electronic Components
RW70U4990D
Resistor, Fixed, Wire Wound
Part NumberRW70U4990D
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-223-3029 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Resistance Tolerance In Percent-0.500 TO 0.500
Test Data Document81349-MIL-R-26 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Body Diameter0.063 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
Terminal TypeWIRE LEAD
Ambient Temp In Deg Celsius At Zer275.0
Terminal Length1.375 INCHES MINIMUM AND 2.125 INCHES MAXIMUM
Body Length0.375 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
Cubic Measure0.005 CUBIC INCHES
Power Dissipation Rating In Watts1.000 FREE AIR
Inclosure TypeENCAPSULATED
Temp Range Of Temp Coefficient In-55.0 TO 275.0
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 RW70U4990D available?
We can source RW70U4990D 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 RW70U4990D by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If RW70U4990D 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 RW70U4990D?
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 RW70U4990D?
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.