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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-C-456331
Loudspeaker, Permanent Magnet
Part NumberSM-C-456331
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-977-5658 (NSN)
Federal Item NameLOUDSPEAKER,PERMANENT MAGNET
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Style DesignatorSQUARE
Terminal TypeTAB, SOLDER LUG
Center To Center Distance Between2.375 INCHES NOMINAL
Transducer TypeCONE
Overall Length3.125 INCHES NOMINAL
Overall Width3.125 INCHES NOMINAL
Mounting MethodUNTHREADED HOLE(S)
Transducer Diameter3.0 INCHES NOMINAL
Power Rating2.00 WATTS NORMAL
Mounting Facility Quantity4
Installation DesignNONPORTABLE
Vendor Part Numbers666151-079
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-456331 available?
We can source SM-C-456331 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-456331 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-456331 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-456331?
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-456331?
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.