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Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir  · Electronic Components

A57

Dummy Load, Electrical

Part NumberA57
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameDUMMY LOAD,ELECTRICAL
Federal Supply Class5985 — Antennas and Waveguides
Power Rating75.000 WATTS PEAK AND 50.000 WATTS AVERAGE
Impedance Rating In Ohms5.0 NOMINAL
Overall Height5.875 INCHES NOMINAL
Overall Width6.875 INCHES NOMINAL
Frequency Range Rating+0.150 TO 12.500 MEGAHERTZ
Overall Length7.812 INCHES NOMINAL
Vendor Part NumbersA58, SCD471, SCD471D
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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 A57 available?
We can source A57 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 A57 by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A57 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 A57?
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 A57?
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.