L3Harris Maritime Power & Energy Solutions · Electronic Components
221-001-257
Transformer, Power
Part Number221-001-257
ManufacturerL3Harris Maritime Power & Energy Solutions
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-099-4664 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Winding Function And Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Overall Width6.500 INCHES NOMINAL
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center To Center Distance Between6.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Terminal Type And Quantity4 WIRE LEAD
Winding Operating Current25.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Mounting Hole Diameter0.406 INCHES NOMINAL SINGLE GROUP
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Cancelled NSN5950-01-176-4880 (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 221-001-257 available?
We can source 221-001-257 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 221-001-257 by L3Harris Maritime Power & Energy Solutions obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 221-001-257 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 221-001-257?
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 221-001-257?
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.