Northrop Grumman Support Services · Electronic Components
128C498H03
Coupler, Directional
Part Number128C498H03
ManufacturerNorthrop Grumman Support Services
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-436-2003 (NSN)
Federal Item NameCOUPLER,DIRECTIONAL
Federal Supply Class5985 — Antennas and Waveguides
Overall Height0.380 INCHES NOMINAL
Terminal Fitting Controlling AgencMIL
Radio Frequency Rating1.0 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
Design TypeBIDIRECTIONAL
Usage DesignMAIN LINE AND SECONDARY LINE TERMINAL FITTING
Unpackaged Unit Weight1.900 OUNCES NOMINAL
Overall Length2.500 INCHES NOMINAL
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Overall Width1.486 INCHES NOMINAL
Power Loss In Decibels6.0
Unit TypeTRANSMISSION LINE
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 128C498H03 available?
We can source 128C498H03 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 128C498H03 by Northrop Grumman Support Services obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 128C498H03 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 128C498H03?
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 128C498H03?
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.