Lockheed Martin · Electronic Components
66-300
Transformer, Power Autotransforme
Part Number66-300
ManufacturerLockheed Martin
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-850-4724 (NSN)
Federal Item NameTRANSFORMER,POWER AUTOTRANSFORME
Federal Supply Class5950 — Coils and Transformers
Terminal Type And Quantity3 TAB, SOLDER LUG
Mounting Hole Diameter0.100 INCHES MINIMUM AND 0.105 INCHES MAXIMUM SINGLE GROUP
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Center To Center Distance Between1.310 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Input Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length1.500 INCHES MAXIMUM
Winding Power Rating72.5 VOLTS-AMPERES SINGLE COMPONENT SINGLE PRIMARY INPUT
Body Width1.062 INCHES MAXIMUM
Inclosure TypeOPEN
Body Height2.000 INCHES MAXIMUM
Vendor Part Numbers5385
For Use WithHexacon/American Beauty & Esico 3/8" Tip Soldering Irons
ProducttraceabilityNo
Tip Nozzle Width0.25 "
RohscompliantTBA
Product Range66 Series
IscanonicalY
Hazardousfalse
Tip Nozzle StyleScrewdriver
RohsphthalatescompliantTBA
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 66-300 available?
We can source 66-300 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 66-300 by Lockheed Martin obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 66-300 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 66-300?
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 66-300?
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.