Lockheed Martin · Electronic Components
1977801-2
Resistor, Fixed, Wire Wound, Induct
Part Number1977801-2
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-849-4701 (NSN)
Federal Item NameRESISTOR,FIXED,WIRE WOUND,INDUCT
Federal Supply Class5905 — Resistors
Electrical Resistance1.000 KILOHMS
Style DesignatorAXIAL TERMINALS ONE END
Terminal Length0.780 INCHES NOMINAL0.780 INCHES NOMINAL
Body Diameter1.750 INCHES NOMINAL1.750 INCHES NOMINAL
Temp Range Of Temp Coefficient In-55.0 TO 275.0
Terminal TypeTAB, SOLDER LUGTAB, SOLDER LUG
Reliability IndicatorNOT ESTABLISHEDNOT ESTABLISHED
Heat Sink Length12.000 INCHES12.000 INCHES
Inclosure TypeENCASEDENCASED
Power Dissipation Rating In Watts40.000 FREE AIR40.000 FREE AIR
Mounting Bushing Diameter1.250 INCHES NOMINAL1.250 INCHES NOMINAL
Vendor Part NumbersPH-100 1K OHMS 3PCT
Cancelled NSN5905-00-681-3220 (cancelled)
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 1977801-2 available?
We can source 1977801-2 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 1977801-2 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1977801-2 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 1977801-2?
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 1977801-2?
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.