Phaostron Instrument and Electronic · Electronic Components
621-311
Ammeter — Test Instruments
Part Number621-311
ManufacturerPhaostron Instrument and Electronic
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-581-8323 (NSN)
Federal Item NameAMMETER
Federal Supply Class6625 — Test Instruments
Indicator TypeDIAL W/POINTER
Installation DesignPANEL
Environmental ProtectionDUST RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT
Meter Depth Behind Mounting Flange1.060 INCHES NOMINAL
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Circuit Current For Which DesignedDC
Surface TreatmentENAMEL SEMIGLOSS
Pointer ColorBLACK SINGLE INDICATOR SINGLE RANGE
Overall Length1.460 INCHES NOMINAL
Mounting Hole Diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
Nuclear Hardness Critical FeatureNONHARDENED
Cancelled NSN6625-00-985-5217 (cancelled)
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 621-311 available?
We can source 621-311 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 621-311 by Phaostron Instrument and Electronic obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 621-311 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 621-311?
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 621-311?
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.