Lockheed Martin Corporation · Electronic Components
803978
Resistor, Adjustable
Part Number803978
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-280-1606 (NSN)
Federal Item NameRESISTOR,ADJUSTABLE
Federal Supply Class5905 — Resistors
Ambient Temp In Deg Celsius At Zer415.0
Style DesignatorRADIAL TERMINAL EACH END
Power Dissipation Rating In Watts375.000 FREE AIR
Body Length10.500 INCHES NOMINAL
Body Diameter1.125 INCHES NOMINAL
Terminal Length0.562 INCHES NOMINAL
Reactance CharacteristicINDUCTIVE
Ambient Temp At Full Rated Power40.0 CELSIUS
Reliability IndicatorNOT ESTABLISHED
Terminal TypeTAB W/SCREW
Inclosure TypeUNINCLOSED
RohscompliantYES
Label MaterialPolyester
Hazardousfalse
RohsphthalatescompliantYES
Product RangeMM-EML
IscanonicalY
Label TypeThermal Transfer Printable
Pack Quantity-
SvhcNo SVHC (04-Feb-2026)
Label ColourBlack on Silver
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 803978 available?
We can source 803978 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 803978 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 803978 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 803978?
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 803978?
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.