Honeywell Intl Inc. Defense Avionics Systems · Electronic Components
AY221S51B
Resolver, Electrical
Part NumberAY221S51B
ManufacturerHoneywell Intl Inc. Defense Avionics Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-729-9022 (NSN)
Federal Item NameRESOLVER,ELECTRICAL
Federal Supply Class5990 — Synchros and Resolvers
Flange Thickness0.0930 INCHES NOMINAL
Undercut Diameter1.3120 INCHES NOMINAL
Undercut Width0.0780 INCHES NOMINAL
Overall Length1.1310 INCHES NOMINAL
Flange Diameter1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM
Pilot Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Body StyleSTANDARD ROUND C
Shoulder Diameter1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM
Length0.1320 INCHES NOMINAL SHOULDER
Shaft Diameter0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT
Phase Shift Angle In Deg6.300 INPUT TO OUTPUT NOMINAL
Vendor Part Numbers495150-234
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 AY221S51B available?
We can source AY221S51B 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 AY221S51B by Honeywell Intl Inc. Defense Avionics Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AY221S51B 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 AY221S51B?
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 AY221S51B?
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.