Boeing · Electronic Components
27-10139-1
Transformer, Audio Frequency
Part Number27-10139-1
ManufacturerBoeing
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-00-948-7733 (NSN)
Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Primary To Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Impedance Rating In Ohms300.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity3 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Body Width0.750 INCHES NOMINAL
Body Length1.000 INCHES NOMINAL
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Nominal Thread Size0.138 INCHES 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 27-10139-1 available?
We can source 27-10139-1 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 27-10139-1 by Boeing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 27-10139-1 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 27-10139-1?
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 27-10139-1?
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.