Magnespec Inc. · Electronic Components
AU4166
Transformer, Power
Part NumberAU4166
ManufacturerMagnespec Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-885-4023 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Winding Function And Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Length1.406 INCHES NOMINAL
Body Width1.062 INCHES MAXIMUM
Winding Operating Voltage12.60 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Terminal Type And Quantity7 WIRE HOOK
Inclosure TypeHERMETICALLY SEALED
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Hole Diameter0.166 INCHES NOMINAL SINGLE GROUP
Body Height1.500 INCHES NOMINAL
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Vendor Part Numbers512-4-904
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 AU4166 available?
We can source AU4166 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 AU4166 by Magnespec Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AU4166 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 AU4166?
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 AU4166?
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.