Astec America Inc. · Electronic Components
21091
Transformer, Power
Part Number21091
ManufacturerAstec America Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-220-9924 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Nominal Thread Size0.190 INCHES SINGLE GROUP
Terminal Type And Quantity4 TAB, SOLDER LUG
Center To Center Distance Between4.380 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Winding Operating Voltage1.40 AC KILOVOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Body Height4.780 INCHES MAXIMUM
Frequency Rating57.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeOPEN
Mounting Facility Quantity4 SINGLE GROUP
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 21091 available?
We can source 21091 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 21091 by Astec America Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21091 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 21091?
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 21091?
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.