Microwave Development Laboratories, Inc. · Electronic Components
112TH109
Waveguide Assembly
Part Number112TH109
ManufacturerMicrowave Development Laboratories, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-030-9979 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Inside Height0.628 INCHES NOMINAL FIRST FLANGE0.628 INCHES NOMINAL FIRST FLANGE
Flange Connecting Facility And Qua4 THREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY4 THREADED HOLE(S) SECOND FLANGE SINGLE CONNECTION FACILITY
Flange Inside Width1.122 INCHES NOMINAL SECOND FLANGE1.122 INCHES NOMINAL SECOND FLANGE
Waveguide Outside Width1.250 INCHES NOMINAL1.250 INCHES NOMINAL
Flange Outside Width1.875 INCHES NOMINAL SECOND FLANGE1.875 INCHES NOMINAL SECOND FLANGE
Waveguide Length4.590 INCHES NOMINAL
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENTSEAMLESS SINGLE TUBING SEGMENT
Flange Outside Height1.875 INCHES NOMINAL SECOND FLANGE1.875 INCHES NOMINAL SECOND FLANGE
Flange Depth0.438 INCHES NOMINAL FIRST FLANGE0.438 INCHES NOMINAL FIRST FLANGE
Surface TreatmentGOLD ALL FLANGE ALL SURFACES
Waveguide Outside Height0.625 INCHES NOMINAL0.625 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 112TH109 available?
We can source 112TH109 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 112TH109 by Microwave Development Laboratories, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 112TH109 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 112TH109?
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 112TH109?
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.