Northrop Grumman Systems Corporation · Electronic Components
990C421H01
Attenuator, Variable
Part Number990C421H01
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-433-3550 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Overall Length3.750 INCHES NOMINAL
Body StyleCOAXIAL TYPE
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Mounting Facility Type And Quantit4 THREADED HOLE(S)
Overall Height2.340 INCHES NOMINAL
Mounting Thread Quantity32 PER INCH
Insertion Loss At Minimum Attenuat0.5
Body MaterialALUMINUM
Overall Attenuation Range In Decib+0.0 TO 50.0
Frequency Range7.700 GIGAHERTZ MINIMUM AND 7.900 GIGAHERTZ MAXIMUM
Overall Width3.000 INCHES NOMINAL
Vendor Part Numbers6684-50G
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 990C421H01 available?
We can source 990C421H01 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 990C421H01 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 990C421H01 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 990C421H01?
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 990C421H01?
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.