Northrop Grumman Support Services · Electronic Components
138C139H02
Attenuator, Variable
Part Number138C139H02
ManufacturerNorthrop Grumman Support Services
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-090-7443 (NSN)
Federal Item NameATTENUATOR,VARIABLE
Federal Supply Class5985 — Antennas and Waveguides
Terminal Type And Quantity2 CONNECTOR, COAXIAL, FEMALE
Mounting Facility Screw Thread SerUNIFIED NATIONAL COARSE (UNC)
Center To Center Distance Between2.250 INCHES NOMINAL
Overall Width3.000 INCHES NOMINAL
Operating Temp Range-40.0 TO 62.0 CELSIUS
Body StyleCOAXIAL TYPE
Overall Height2.875 INCHES NOMINAL
Overall Attenuation Range In Decib+0.0 TO 20.0
Coaxial Connector Series DesignatiSM
Overall Attenuation Accuracy In De-1.00 TO 1.00
Power Rating15.0 WATTS AVERAGE AND 5.0 KILOWATTS PEAK
Vendor Part Numbers4684-20V
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 138C139H02 available?
We can source 138C139H02 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 138C139H02 by Northrop Grumman Support Services obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 138C139H02 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 138C139H02?
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 138C139H02?
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.