Naval Air Warfare Center Aircraft Div · Electronic Components
56A187B21
Transformer, Power Autotransforme
Part Number56A187B21
ManufacturerNaval Air Warfare Center Aircraft Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-543-9142 (NSN)
Federal Item NameTRANSFORMER,POWER AUTOTRANSFORME
Federal Supply Class5950 — Coils and Transformers
Center To Center Distance Between0.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Body Length1.125 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Body Width1.125 INCHES NOMINAL
Nominal Thread Size0.112 INCHES SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage1.10 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Terminal Type And Quantity3 TAB, SOLDER LUG
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Cancelled NSN5950-00-929-7265 (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 56A187B21 available?
We can source 56A187B21 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 56A187B21 by Naval Air Warfare Center Aircraft Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 56A187B21 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 56A187B21?
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 56A187B21?
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.