Lockheed Martin · Electronic Components
EEP1661-123
Waveguide Assembly
Part NumberEEP1661-123
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-128-3827 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Outside Height1.312 INCHES NOMINAL FIRST FLANGE
Waveguide Inside Width0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM
Flange Inside Width0.622 INCHES NOMINAL FIRST FLANGE
Thread Quantity Per Inch32 SECOND FLANGE ALL CONNECTION FACILITIES
Flange Connecting Hole Diameter0.144 INCHES NOMINAL FIRST FLANGE ALL CONNECTION FACILITIES
Waveguide Outside Height0.394 INCHES MINIMUM AND 0.394 INCHES MAXIMUM
Flange Inside Height0.394 INCHES NOMINAL SECOND FLANGE
Flange Outside Width1.312 INCHES NOMINAL FIRST FLANGE
Thread DirectionRIGHT-HAND SECOND FLANGE ALL CONNECTION FACILITIES
Flange Depth0.312 INCHES NOMINAL SECOND FLANGE
Nominal Thread Size0.138 INCHES SECOND FLANGE FIRST CONNECTION FACILITY
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 EEP1661-123 available?
We can source EEP1661-123 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 EEP1661-123 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If EEP1661-123 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 EEP1661-123?
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 EEP1661-123?
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.