Robert M Hadley · Electronic Components
20731
Transformer, Power
Part Number20731
ManufacturerRobert M Hadley
AvailabilityAvailable to order — request a quote
Specifications
NSN5950-01-334-9753 (NSN)
Federal Item NameTRANSFORMER,POWER
Federal Supply Class5950 — Coils and Transformers
Reliability IndicatorNOT ESTABLISHED
Overall Length4.000 INCHES MAXIMUM
Hazardous Locations EnvironmentalSALT WATER RESISTANT AND VIBRATION RESISTANT
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type And Quantity7 TURRET
Inclosure TypeFULLY INCLOSED
Center To Center Distance Between3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP
Overall Width3.700 INCHES MAXIMUM
Winding Operating Voltage29.70 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Maximum Operating Temp125.0 CELSIUS
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 20731 available?
We can source 20731 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 20731 by Robert M Hadley obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 20731 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 20731?
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 20731?
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.