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Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier · Electronic Components
174AS578
Coupler, Directional
Part Number174AS578
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-069-5619 (NSN)
Federal Item NameCOUPLER,DIRECTIONAL
Federal Supply Class5985 — Antennas and Waveguides
Design TypeBIDIRECTIONAL
Unit TypeTRANSMISSION LINE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Power Loss In Decibels6.0
Unpackaged Unit Weight0.980 OUNCES NOMINAL
Radio Frequency Rating4.0 GIGAHERTZ MINIMUM AND 8.0 GIGAHERTZ MAXIMUM
Overall Width0.370 INCHES NOMINAL
Overall Height1.410 INCHES NOMINAL
Overall Length1.180 INCHES NOMINAL
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 174AS578 available?
We can source 174AS578 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 174AS578 by Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 174AS578 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 174AS578?
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 174AS578?
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.