Quam Nichols Co · Electronic Components
SP4A1
Loudspeaker, Permanent Magnet
Part NumberSP4A1
ManufacturerQuam Nichols Co
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-615-0700 (NSN)
Federal Item NameLOUDSPEAKER,PERMANENT MAGNET
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Terminal TypeTAB, SOLDER LUG
Style DesignatorSQUARE
Mounting MethodUNTHREADED HOLE(S)
Center To Center Distance Between3.625 INCHES NOMINAL
Transducer TypeCONE
Power Rating4.00 WATTS NORMAL AND 5.00 WATTS PEAK
Impedance Rating In Ohms45.0 VOICE COIL NOMINAL
Usage DesignINDOOR
Overall Length4.000 INCHES NOMINAL
Mounting Facility Quantity4
Overall Width4.000 INCHES NOMINAL
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 SP4A1 available?
We can source SP4A1 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 SP4A1 by Quam Nichols Co obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SP4A1 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 SP4A1?
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 SP4A1?
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.