Kato Engineering · Electronic Components
550-71151-21
Ammeter — Test Instruments
Part Number550-71151-21
ManufacturerKato Engineering
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-042-5701 (NSN)
Federal Item NameAMMETER
Federal Supply Class6625 — Test Instruments
Circuit Construction TypeNONELECTRONIC
Movement Suspension MethodJEWEL PIVOT BASE
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 50.0 AMPERES, AC SINGLE INDICATOR SINGLE RANGE
Scale Graduation TypeLINEAR SINGLE INDICATOR SINGLE RANGE
Power SourceEXTERNAL
Features ProvidedZERO ADJUSTER
Circuit Attachment Method And Quan2 THREADED STUD
Movement TypeMOVING COIL, PERMANENT MAGNET
Mounting Hole Diameter0.160 INCHES NOMINAL
ColorUNABLE TO DECODE
Vendor Part NumbersAEA3-3453A
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 550-71151-21 available?
We can source 550-71151-21 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 550-71151-21 by Kato Engineering obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 550-71151-21 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 550-71151-21?
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 550-71151-21?
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.