Raytheon · Electronic Components
166521-4
Transformer, Power
Part Number166521-4
ManufacturerRaytheon
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-070-5218 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Overall Length3.062 INCHES NOMINAL
Overall Width2.562 INCHES NOMINAL
Overall Height2.875 INCHES NOMINAL
Reliability IndicatorNOT ESTABLISHED
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Inclosure TypeOPEN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY INPUT
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
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 166521-4 available?
We can source 166521-4 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 166521-4 by Raytheon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 166521-4 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 166521-4?
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 166521-4?
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.