Jewell Instruments LLC · Electronic Components
121-18
Voltmeter — Test Instruments
Part Number121-18
ManufacturerJewell Instruments LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-077-2733 (NSN)
Federal Item NameVOLTMETER
Federal Supply Class6625 — Test Instruments
Features ProvidedZERO ADJUSTER
Mounting Stud Diameter0.138 INCHES NOMINAL
Measurement Range-3.0 TO 3.0 VOLTS, ROOT MEAN SQUARE SINGLE INDICATOR FIRST RANGE
Pointer ColorBLACK SINGLE INDICATOR ALL RANGES
Circuit Attachment Method And Quan2 SCREW AND 2 SOLDER LUG AND 1 TURRET
Mounting Facility Type And Quantit6 THREADED STUD(S)
Power SourceEXTERNAL
Scale Selection MethodTERMINAL
Movement Suspension MethodJEWEL PIVOT BASE
Scale Graduation TypeLINEAR SINGLE INDICATOR ALL RANGES
Mounting Arrangement StyleSIX HOLE/STUD BOLT CIRCLE
ProducttraceabilityNo
RohscompliantTBA
IscanonicalY
Hazardousfalse
RohsphthalatescompliantTBA
UseccnUnknown
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 121-18 available?
We can source 121-18 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 121-18 by Jewell Instruments LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 121-18 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 121-18?
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 121-18?
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.