Kearfott · Electronic Components
3RS901-3A
Synchro, Control Transformer
Part Number3RS901-3A
ManufacturerKearfott
AvailabilityAvailable to order — request a quote
Specifications
NSN5990-00-242-2705 (NSN)
Federal Item NameSYNCHRO,CONTROL TRANSFORMER
Federal Supply Class5990 — Synchros and Resolvers
Electrical Error Angular Range In-3.0 TO 3.0
Shoulder Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM
Flange Diameter1.0570 INCHES MINIMUM AND 1.0650 INCHES MAXIMUM
Body StyleSTANDARD ROUND C
Pilot Diameter0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
Undercut Width0.0500 INCHES NOMINAL
Overall Length2.1390 INCHES NOMINAL
Flange Thickness0.0930 INCHES NOMINAL
Undercut Diameter0.9750 INCHES NOMINAL
Length0.0620 INCHES NOMINAL SHOULDER
Maximum Total Null Voltage Output40.00
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 3RS901-3A available?
We can source 3RS901-3A 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 3RS901-3A by Kearfott obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3RS901-3A 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 3RS901-3A?
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 3RS901-3A?
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.