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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-D-561800
Mast — Antennas and Waveguides
Part NumberSM-D-561800
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-782-5278 (NSN)
Federal Item NameMAST
Federal Supply Class5985 — Antennas and Waveguides
Mast ConstructionSECTIONALIZED
MaterialALUMINUM
Surface TreatmentENAMEL
Base Depth21.250 INCHES NOMINAL
Section Quantity8
Base Diameter15.000 INCHES NOMINAL
Maximum Height50.000 FEET
Accessory Components And QuantityACCESSORY BAG 1,GUY CABLE BAG 1,STAKE BAG 1,MAST SECTION CARRIER 1,GUYS 12,GUY PLATES 5,SLEDGE TYPE 5A 1,CARRIER STAKE 1
Vendor Part NumbersAB-621/G
ESD/EMICode A — ESD/EMI sensitive item
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 SM-D-561800 available?
We can source SM-D-561800 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 SM-D-561800 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 SM-D-561800 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 SM-D-561800?
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 SM-D-561800?
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.