MIL-SPEC · Electronic Components
18TR4B
Synchro, Receiver
Part Number18TR4B
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-677-6481 (NSN)
Federal Item NameSYNCHRO,RECEIVER
Federal Supply Class5990 — Synchros and Resolvers
Body Size18
Shaft Length0.5000 INCHES NOMINAL SINGLE SHAFT
Rotor Input Current Rating375.0 MILLIAMPERES NOMINAL
Rotor Input Voltage Rating In Volt115.0 NOMINAL
Shaft Thread Length0.2000 INCHES NOMINAL SINGLE SHAFT
Shaft TypeSPLINE W/THREADS SINGLE SHAFT
Rotor Input Electrical Power Ratin3.2 WATTS NOMINAL
Spline Tooth Quantity21 SINGLE SHAFT
Shaft Nominal Thread Size0.190 INCHES SINGLE SHAFT
Spline Tooth Diametral Pitch120 SINGLE SHAFT
Terminal Type And Quantity5 SCREW
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 18TR4B available?
We can source 18TR4B 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 18TR4B by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 18TR4B 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 18TR4B?
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 18TR4B?
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.