Hickok Waekon · Electronic Components
491-312
Ammeter — Test Instruments
Part Number491-312
ManufacturerHickok Waekon
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-989-9927 (NSN)
Federal Item NameAMMETER
Federal Supply Class6625 — Test Instruments
Movement TypeMOVING IRON VANE
Meter Body Diameter Behind Mountin3.500 INCHES NOMINAL
Movement Suspension MethodJEWEL PIVOT BASE
Circuit Attachment Method And Quan2 THREADED STUD
Style DesignatorRECTANGULAR FLUSH MTG
Mounting Facility Type And Quantit4 THREADED STUD(S)
ColorUNABLE TO DECODE
MaterialPLASTIC
Accuracy In Percent-1.0 TO 1.0 AT FULL SCALE SINGLE INDICATOR SINGLE RANGE
Overall Height3.750 INCHES NOMINAL
Overall Width4.000 INCHES NOMINAL
Cancelled NSN6625-00-618-9502 (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 491-312 available?
We can source 491-312 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 491-312 by Hickok Waekon obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 491-312 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 491-312?
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 491-312?
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.