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The Boeing Company  · Electronic Components

30129-404

Transformer, Audio Frequency

Part Number30129-404
ManufacturerThe Boeing Company
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameTRANSFORMER,AUDIO FREQUENCY
Federal Supply Class5950 — Coils and Transformers
Primary To Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Center To Center Distance Between1.380 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Impedance Rating In Ohms4000000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Transformer FunctionINPUT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length3.960 INCHES NOMINAL
Nominal Thread Size0.138 INCHES SINGLE GROUP
Body Height3.270 INCHES NOMINAL
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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

Frequently asked

Is 30129-404 available?
We can source 30129-404 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 30129-404 by The Boeing Company obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 30129-404 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 30129-404?
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 30129-404?
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.