Northrop Grumman Systems · Electronic Components
990C805H01
Attenuator, Variable
Part Number990C805H01
ManufacturerNorthrop Grumman Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-411-5158 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Application DesignWAVEGUIDE
Test Data Document18323-990C805H01 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACT
Terminal Type And Quantity2 FLANGE
Precious MaterialRHODIUM AND SILVER
Precious Material And LocationBODY RHODIUM AND BODY SILVER
Unthreaded Mounting Hole Diameter0.169 INCHES MINIMUM
Overall Attenuation Accuracy In De-0.20 TO 0.20
Waveguide DesignationRG-52/U
Waveguide Flange DesignationUG-39/U
Overall Height2.180 INCHES NOMINAL
Attenuation Variation MethodCONTINUOUS
Vendor Part Numbers730
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 990C805H01 available?
We can source 990C805H01 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 990C805H01 by Northrop Grumman Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 990C805H01 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 990C805H01?
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 990C805H01?
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.