Ballantyne Of Omaha Inc. · Electronic Components
A72557
Resistor, Current Regulating
Part NumberA72557
ManufacturerBallantyne Of Omaha Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5905-00-279-9551 (NSN)
Federal Item NameRESISTOR,CURRENT REGULATING
Federal Supply Class5905 — Resistors
Current Range In Amps+0.68 TO 0.72
Base TypeOCTAL
Current TypeAC/DC
Threshold Voltage In Volts7.0
Envelope Type Per Mil E 1T9 (4-2) PER SPEC MIL-E-1B
Resistive Element Pin Connection2 AND 7
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 A72557 available?
We can source A72557 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 A72557 by Ballantyne Of Omaha Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A72557 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 A72557?
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 A72557?
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.