Raytheon · Electronic Components
28-1240
Resistor, Fixed, Wire Wound, Induct
Part Number28-1240
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-01-135-0551 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Temp Coefficient Of Resistance In-100.0 TO 100.0
Ambient Temp At Full Rated Power-55.0 CELSIUS
Temp Range Of Temp Coefficient In-55.0 TO 100.0
Terminal Length1.500 INCHES NOMINAL
Ambient Temp In Deg Celsius At Zer150.0
Body Diameter0.328 INCHES NOMINAL
Inclosure TypeENCAPSULATED
Reliability IndicatorNOT ESTABLISHED
Terminal TypeWIRE LEAD
Power Dissipation Rating In Watts0.500 FREE AIR
Body Length0.984 INCHES NOMINAL
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 28-1240 available?
We can source 28-1240 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 28-1240 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 28-1240 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 28-1240?
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 28-1240?
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.