Jewell Instruments LLC · Electronic Components
503-4
Voltmeter — Test Instruments
Part Number503-4
ManufacturerJewell Instruments LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-729-6723 (NSN)
Federal Item NameVOLTMETER
Federal Supply Class6625 — Test Instruments
Movement Suspension MethodJEWEL PIVOT BASE
Features ProvidedZERO ADJUSTER
FSC Application DataTEST SET,ELECT. EQUIP.
Nuclear Hardness Critical FeatureNONHARDENED
Scale Division Quantity50 SINGLE INDICATOR SINGLE RANGE
ColorUNABLE TO DECODE
Style DesignatorROUND FLUSH MTG
Mounting Arrangement StyleTHREE HOLE/STUD BOLT CIRCLE
Mounting Bolt Circle Diameter1.578 INCHES NOMINAL
Installation DesignPANEL
Overall Diameter3.500 INCHES NOMINAL
Vendor Part Numbers321HR, 10368143, 1132-9192, 68421000701
Cancelled NSN6625-00-811-2474 (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 503-4 available?
We can source 503-4 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 503-4 by Jewell Instruments LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 503-4 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 503-4?
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 503-4?
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.