Aimtron Systems, LLC · Electronic Components
402289
Coupler, Directional
Part Number402289
ManufacturerAimtron Systems, LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-021-5779 (NSN)
Federal Item NameCOUPLER,DIRECTIONAL
Federal Supply Class5985 — Antennas and Waveguides
Usage DesignMAIN LINE AND SECONDARY LINE TERMINAL FITTING
Unit TypeCOAXIAL LINE AND WAVEGUIDE
Terminal Fitting Controlling AgencMICROWAVE ASSOCIATES INC; JETDS
Identifying NumberTERMINAL FITTING TYPE NO. N; PART NO. OSM 204CC; TYPE NO. UG-137B/U; TYPE NO. UG-138
FSC Application DataRADAR ANTENNA SUPPORT SET AND RADOMES,EXCEPT SPECIALLY DESIGNED
Design TypeBIDIRECTIONAL
Overall Width3.219 INCHES NOMINAL
Overall Length3.980 INCHES NOMINAL
Overall Height6.125 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 402289 available?
We can source 402289 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 402289 by Aimtron Systems, LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 402289 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 402289?
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 402289?
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.