Honeywell Intl Inc. Defense Avionics Systems · Electronic Components
AY251S39B
Resolver, Electrical
Part NumberAY251S39B
ManufacturerHoneywell Intl Inc. Defense Avionics Systems
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-504-8214 (NSN)
Federal Item NameRESOLVER,ELECTRICAL
Federal Supply Class5990 — Synchros and Resolvers
Flange Thickness0.0930 INCHES NOMINAL
Body StyleSTANDARD ROUND B
Pilot Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM
Overall Length2.1310 INCHES NOMINAL
Shoulder Diameter1.3070 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM
Length0.1320 INCHES NOMINAL SHOULDER
Flange Diameter1.4360 INCHES MINIMUM AND 1.4370 INCHES MAXIMUM
Undercut Width0.0780 INCHES NOMINAL
Terminal LocationREAR
Actuator Friction Torque At Plus 210.0 CENTIMETER-GRAMS NOMINAL
Shaft Diameter0.1195 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM SINGLE SHAFT
Vendor Part NumbersE960006
Cancelled NSN5990-00-727-6706 (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 AY251S39B available?
We can source AY251S39B 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 AY251S39B by Honeywell Intl Inc. Defense Avionics Systems obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AY251S39B 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 AY251S39B?
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 AY251S39B?
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.