Northrop Grumman Systems Corp. · Electronic Components
M30842
Adapter, Waveguide
Part NumberM30842
ManufacturerNorthrop Grumman Systems Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-900-0544 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Cross Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Nominal Thread Size0.250 INCHES SINGLE FLANGE ALL CONNECTION FACILITIES
Flange Connecting Facility And Qua8 THREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES
Flange Quantity1
Coaxial Connector Series DesignatiN
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Style DesignatorWAVEGUIDE TO COAXIAL
Connector End DesignFEMALE
Thread DirectionRIGHT-HAND SINGLE FLANGE ALL CONNECTION FACILITIES
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE FLANGE ALL CONNECTION FACILITIES
Thread Class2B SINGLE FLANGE ALL CONNECTION FACILITIES
Vendor Part NumbersUG-551A/U
Cancelled NSN5985-00-296-0931 (cancelled)
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 M30842 available?
We can source M30842 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 M30842 by Northrop Grumman Systems Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M30842 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 M30842?
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 M30842?
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.