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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-A-878018
Coupler, Transmission Line
Part NumberSM-A-878018
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-047-4875 (NSN)
Federal Item NameCOUPLER,TRANSMISSION LINE
Federal Supply Class5985 — Antennas and Waveguides
Output Impedance Rating In Ohms50.0
Precious MaterialGOLD
Precious Material And LocationLEAD SURFACE GOLD
MaterialSTEEL
Input Impedance Rating In Ohms50.0
Overall Height0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
Radio Frequency Rating70.0 MEGAHERTZ NOMINAL
Overall Length0.919 INCHES MINIMUM AND 1.079 INCHES MAXIMUM
Unit TypeTRANSMISSION LINE
Overall Width0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
Vendor Part NumbersQHF-2A-70/21975
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 SM-A-878018 available?
We can source SM-A-878018 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 SM-A-878018 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-A-878018 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 SM-A-878018?
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 SM-A-878018?
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.