Northrop Grumman Systems Corporation · Electronic Components
1881213
Flange, Waveguide
Part Number1881213
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-239-0149 (NSN)
Federal Item NameFLANGE,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Flange Outside Diameter4.125 INCHES NOMINAL SINGLE FLANGE
Thread Quantity Per Inch32 SINGLE FLANGE FIRST CONNECTION FACILITY
Thread DirectionRIGHT-HAND SINGLE FLANGE FIRST CONNECTION FACILITY
Flange StyleCHOKE TYPE SINGLE FLANGE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE FIRST CONNECTION FACILITY
Flange Inside Diameter1.813 INCHES NOMINAL SINGLE FLANGE
Thread Class2B SINGLE FLANGE FIRST CONNECTION FACILITY
MaterialALUMINUM ALLOY 6061 SINGLE FLANGE
Flange Connecting Facility And Qua4 THREADED HOLE(S) SINGLE FLANGE FIRST CONNECTION FACILITY
Flange Depth0.719 INCHES NOMINAL SINGLE FLANGE
Nominal Thread Size0.138 INCHES SINGLE 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 1881213 available?
We can source 1881213 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 1881213 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1881213 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 1881213?
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 1881213?
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.