Honeywell Intl Inc. Defense Avionics Systems · Electronic Components
AY201-4B
Synchro, Transmitter
Part NumberAY201-4B
ManufacturerHoneywell Intl Inc. Defense Avionics Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-504-8809 (NSN)
Federal Item NameSYNCHRO,TRANSMITTER
Federal Supply Class5990 — Synchros and Resolvers
Flange Diameter1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM
Shoulder Diameter1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM
Body StyleSTANDARD ROUND B
Undercut Width0.0780 INCHES NOMINAL
Overall Length2.1310 INCHES NOMINAL
Flange Thickness0.0930 INCHES NOMINAL
Pilot Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Shaft Diameter0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT
Shaft TypeROUND, SLOTTED SINGLE SHAFT
Length0.1320 INCHES NOMINAL SHOULDER
Shaft Slot Depth0.0310 INCHES NOMINAL SINGLE SHAFT
Vendor Part Numbers993731-02
Cancelled NSN5990-00-503-0728 (cancelled)
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 AY201-4B available?
We can source AY201-4B 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 AY201-4B by Honeywell Intl Inc. Defense Avionics Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AY201-4B 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 AY201-4B?
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 AY201-4B?
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.