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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-C-375494
Meter, Electrical Frequency
Part NumberSM-C-375494
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN6625-00-814-7549 (NSN)
Federal Item NameMETER,ELECTRICAL FREQUENCY
Federal Supply Class6625 — Test Instruments
Measurement Range+380.0 TO 420.0 HERTZ SINGLE INDICATOR SINGLE RANGE
Resonant Reed Quantity9
Mounting Hole Diameter0.138 INCHES NOMINAL
Mounting Bolt Circle Diameter3.150 INCHES MINIMUM AND 3.170 INCHES MAXIMUM
Scale Division Quantity8 SINGLE INDICATOR SINGLE RANGE
Meter Body Diameter Behind Mountin2.687 INCHES NOMINAL
Circuit Attachment Method And Quan2 SOLDER LUG
Style DesignatorROUND FLUSH MTG
Nuclear Hardness Critical FeatureNONHARDENED
Mounting Facility Type And Quantit3 SCREW AND 3 UNTHREADED HOLE(S)
ColorUNABLE TO DECODE
Vendor Part NumbersG300295-1, MK777-278, 1JB6118-1, 457-0001-020
Cancelled NSN6625-00-390-7822 (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 SM-C-375494 available?
We can source SM-C-375494 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 SM-C-375494 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-C-375494 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 SM-C-375494?
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 SM-C-375494?
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.