Keysight Technologies Inc. · Electronic Components
HP400D
Voltmeter — Test Instruments
Part NumberHP400D
ManufacturerKeysight Technologies Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-889-9939 (NSN)
Federal Item NameVOLTMETER
Federal Supply Class6625 — Test Instruments
ColorUNABLE TO DECODE
Nuclear Hardness Critical FeatureNONHARDENED
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Measurement Range+0.0 TO 1.0 VOLTS, AC SINGLE INDICATOR FIRST RANGE
Accuracy In Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Features ProvidedZERO ADJUSTER
Circuit Current For Which DesignedAC
Overall Length12.000 INCHES NOMINAL
Overall Height7.500 INCHES NOMINAL
Circuit Attachment Method And Quan2 PHONE JACK
Overall Width11.750 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 HP400D available?
We can source HP400D 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 HP400D by Keysight Technologies Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If HP400D 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 HP400D?
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 HP400D?
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.