MIL-SPEC · Electronic Components
AN/USM-128
Test Set, Electrical Power
Part NumberAN/USM-128
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-01-085-4729 (NSN)
Federal Item NameTEST SET,ELECTRICAL POWER
Federal Supply Class6625 — Test Instruments
Electrical Power Source RelationshOPERATING
Enclosure FeatureSINGLE ITEM W/CARRYING CASE
Test Type For Which DesignedMEASURE AC VOLTAGE,DC VOLTAGE,PHASESEQUENCE,AND OUTPUT FREQUENCY OF AIRCRAFT POWER GENERATING SYSTEMS
MaterialALUMINUM CARRYING CASE
Length14.000 INCHES NOMINAL
Height11.000 INCHES NOMINAL
Major ComponentsTEST SET,TRANSIT CASE
Width8.000 INCHES NOMINAL
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 AN/USM-128 available?
We can source AN/USM-128 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 AN/USM-128 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AN/USM-128 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 AN/USM-128?
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 AN/USM-128?
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.