Lockheed Martin Corp. · Electronic Components
EEP1661-111
Waveguide Assembly
Part NumberEEP1661-111
ManufacturerLockheed Martin Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-141-5957 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Inside Width0.705 INCHES MINIMUM AND 0.707 INCHES MAXIMUM ALL FLANGES
Precious Material And LocationFLANGE SURFACE SILVER
Waveguide Length7.000 INCHES NOMINAL
Flange StyleCOVER TYPE ALL FLANGES
Tubing Twist Angle In Deg90.0 SINGLE TUBING SEGMENT
Flange Depth0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM ALL FLANGES
Tubing Twist TypeSTRAIGHT TWIST SINGLE TUBING SEGMENT
Style DesignatorSTRAIGHT TYPE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Flange Connecting Hole Diameter0.144 INCHES MINIMUM AND 0.147 INCHES MAXIMUM ALL FLANGES SINGLE CONNECTION FACILITY
Waveguide Inside Width0.6195 INCHES MINIMUM AND 0.6245 INCHES MAXIMUM
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 EEP1661-111 available?
We can source EEP1661-111 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 EEP1661-111 by Lockheed Martin Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If EEP1661-111 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 EEP1661-111?
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 EEP1661-111?
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.