M & S Electronics Inc. · Electronic Components
128-2974
Loudspeaker, Permanent Magnet
Part Number128-2974
ManufacturerM & S Electronics Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-01-322-6637 (NSN)
Federal Item NameLOUDSPEAKER,PERMANENT MAGNET
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Frequency Response Range In Hertz+125.0 TO 9000.0
Transducer TypeCONE
FSC Application DataCOMMUNICATION EQUIPMENT
Impedance Rating In Ohms3.0 VOICE COIL MINIMUM AND 4.0 VOICE COIL MAXIMUM
Voice Coil Diameter0.563 INCHES NOMINAL
Usage DesignINDOOR
Power Rating3.50 WATTS NORMAL
Installation DesignPORTABLE
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 128-2974 available?
We can source 128-2974 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 128-2974 by M & S Electronics Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 128-2974 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 128-2974?
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 128-2974?
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.