Sikorsky Aircraft · Electronic Components
SM-A-877045
Antenna — Antennas and Waveguides
Part NumberSM-A-877045
ManufacturerSikorsky Aircraft
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-026-3927 (NSN)
Federal Item NameANTENNA
Federal Supply Class5985 — Antennas and Waveguides
Characteristic Impedance In Ohms50.0 SINGLE ANTENNA ELEMENT
Terminal TypeRECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT
Mounting MethodUNTHREADED STUD
Overall Length5.250 INCHES NOMINAL
Overall Width3.680 INCHES MAXIMUM
Radiation PatternOMNIDIRECTIONAL SINGLE ANTENNA ELEMENT
Overall Height1.750 INCHES NOMINAL
Beam Scanning MethodFIXED SINGLE ANTENNA ELEMENT
Design TypeBLADE SINGLE ANTENNA ELEMENT
Coaxial Connector Series DesignatiSMA SINGLE ANTENNA ELEMENT
Connector End DesignSOCKET SINGLE ANTENNA ELEMENT
Vendor Part Numbers11C25400-1
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-A-877045 available?
We can source SM-A-877045 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-A-877045 by Sikorsky Aircraft obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-A-877045 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-A-877045?
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-A-877045?
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.