Textron Aviation Inc. · Electronic Components
4018657-1
Antenna — Antennas and Waveguides
Part Number4018657-1
ManufacturerTextron Aviation Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-553-4767 (NSN)
Federal Item NameANTENNA
Federal Supply Class5985 — Antennas and Waveguides
Electromagnetic Polarization TypeVERTICAL SINGLE ANTENNA ELEMENT
Frequency Rating108.000 MEGAHERTZ MINIMUM AND 122.000 MEGAHERTZ MAXIMUM SINGLE ANTENNA ELEMENT
Radiation PatternOMNIDIRECTIONAL SINGLE ANTENNA ELEMENT
Overall Height22.000 FEET NOMINAL
Beam Scanning MethodFIXED SINGLE ANTENNA ELEMENT
Coaxial Connector Series DesignatiBNC SINGLE ANTENNA ELEMENT
Mounting Hole Quantity1
Terminal TypeCONNECTOR, RECEPTACLE SINGLE ANTENNA ELEMENT
Design TypeWHIP SINGLE ANTENNA ELEMENT
Vendor Part Numbers4018655-1
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 4018657-1 available?
We can source 4018657-1 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 4018657-1 by Textron Aviation Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4018657-1 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 4018657-1?
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 4018657-1?
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.