Lockheed Martin Corporation · Electronic Components
812399
Coupler, Rotary, Radio Frequency
Part Number812399
ManufacturerLockheed Martin Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-092-8707 (NSN)
Federal Item NameCOUPLER,ROTARY,RADIO FREQUENCY
Federal Supply Class5985 — Antennas and Waveguides
MaterialALUMINUM ALLOY
Overall Width3.937 INCHES NOMINAL
Unit TypeCOAXIAL LINE
Mounting ConfigurationFOUR 0.206 IN. DIAMETER HOLES EQUALLY SPACED ON 1.454 IN. DIAMETER BOLT CIRCLE
Overall Height3.000 INCHES NOMINAL
Overall Length5.500 INCHES NOMINAL
Input Impedance Rating In Ohms50.0
Radio Frequency Rating2.7 GIGAHERTZ MINIMUM AND 2.9 GIGAHERTZ MAXIMUM
Output Impedance Rating In Ohms50.0
Vendor Part NumbersSM-C-150165
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 812399 available?
We can source 812399 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 812399 by Lockheed Martin Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 812399 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 812399?
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 812399?
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.