Ballantine Laboratories · Electronic Components
421A
Calibrator, Voltmeter
Part Number421A
ManufacturerBallantine Laboratories
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-105-8198 (NSN)
Federal Item NameCALIBRATOR,VOLTMETER
Federal Supply Class6625 — Test Instruments
ShapeRECTANGULAR
Ac Voltage Rating120.0 VOLTS MINIMUM AND 240.0 VOLTS MAXIMUM
Frequency Rating50.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM
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 421A available?
We can source 421A 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 421A by Ballantine Laboratories obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 421A 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 421A?
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 421A?
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.