Lockheed Martin · Electronic Components
1218260-301
Adapter, Waveguide
Part Number1218260-301
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-399-1602 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Waveguide Inside Width2.834 INCHES MINIMUM AND 2.846 INCHES MAXIMUM
Flange Quantity2
Waveguide Outside Height1.494 INCHES MINIMUM AND 1.506 INCHES MAXIMUM
Surface TreatmentCHROMATE ALL TUBING SEGMENT AND FLANGE ALL SURFACES
MaterialALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
Flange Depth0.670 INCHES MINIMUM AND 0.710 INCHES MAXIMUM SECOND FLANGE
Flange StyleCHOKE TYPE FIRST FLANGE
Nominal Thread Size0.250 INCHES FIRST FLANGE ALL CONNECTION FACILITIES
Flange Inside Height1.335 INCHES MINIMUM AND 1.345 INCHES MAXIMUM SECOND FLANGE
Adapter Length3.000 INCHES NOMINAL
Thread DirectionRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
ESD/EMICode A — ESD/EMI sensitive item
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 1218260-301 available?
We can source 1218260-301 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 1218260-301 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1218260-301 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 1218260-301?
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 1218260-301?
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.