Shallcross Inc. · Electronic Components
R-579-4
Resistor, Fixed, Wire Wound
Part NumberR-579-4
ManufacturerShallcross Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-116-8914 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND
Federal Supply Class5905 — Resistors
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Ambient Temp In Deg Celsius At Zer275.0
Test Data Document13499-7210568 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURE
Reliability IndicatorNOT ESTABLISHED
Body Length0.400 INCHES NOMINAL
Power Dissipation Rating In Watts2.500 FREE AIR
Body Diameter0.140 INCHES NOMINAL
Style DesignatorAXIAL TERMINAL EACH END
Inclosure TypeHERMETICALLY SEALED
Terminal TypeWIRE LEAD
Ambient Temp At Full Rated Power125.0 CELSIUS
Vendor Part Numbers721-0568-040
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 R-579-4 available?
We can source R-579-4 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 R-579-4 by Shallcross Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If R-579-4 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 R-579-4?
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 R-579-4?
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.