Hickok Waekon · Electronic Components
491-274
Voltmeter — Test Instruments
Part Number491-274
ManufacturerHickok Waekon
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-724-4124 (NSN)
Federal Item NameVOLTMETER
Federal Supply Class6625 — Test Instruments
Dial Scale Marking ColorBLACK SINGLE INDICATOR SINGLE RANGE
Overall Diameter4.500 INCHES NOMINAL
Movement TypeMOVING IRON VANE
ColorUNABLE TO DECODE
Style DesignatorROUND FLUSH MTG
Meter Body Diameter Behind Mountin3.500 INCHES NOMINAL
Accuracy In Percent-2.0 TO 2.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
Meter Depth Behind Mounting Flange1.500 INCHES NOMINAL
Installation DesignPANEL
Circuit Attachment Method And Quan2 THREADED STUD
Mounting Bolt Circle Diameter4.124 INCHES NOMINAL
Vendor Part Numbers106C7464P2, MK777-236
Cancelled NSN6625-00-045-8164 (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 491-274 available?
We can source 491-274 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 491-274 by Hickok Waekon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 491-274 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 491-274?
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 491-274?
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.