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Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SC-D-11221
Base, Mast — Antennas and Waveguides
Part NumberSC-D-11221
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-221-5566 (NSN)
Federal Item NameBASE,MAST
Federal Supply Class5985 — Antennas and Waveguides
MaterialCERAMIC AND STEEL
Mounting Hole Diameter0.437 INCHES NOMINAL
FSC Application DataRADIO SET,COMMUNICATION EXCEPT AIRBORNE
Mounting Hole TypePLAIN
Surface TreatmentENAMEL
Mounting Facility Circle Radius3.875 INCHES NOMINAL
Mounting Facility Quantity2
Basic Shape StyleIRREGULAR
Mounting MethodUNTHREADED HOLE(S) AND BINDING POST AND THREADED RETAINER
Vendor Part NumbersMP47, 114D003, SCD11221B, 71-699CTYPEMP47A
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 SC-D-11221 available?
We can source SC-D-11221 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 SC-D-11221 by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SC-D-11221 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 SC-D-11221?
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 SC-D-11221?
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.