Bosch Security Systems, Inc. · Electronic Components
664
Microphone, Dynamic
Part Number664
ManufacturerBosch Security Systems, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-044-4489 (NSN)
Federal Item NameMICROPHONE,DYNAMIC
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Accessory ComponentsCONNECTOR
Cable Conductor Quantity2
Height9.188 INCHES NOMINAL
Output Sensitivity Rating Referenc10 DYNES PER SQ CENTIMETER
Sound Pickup Directional TypeUNIDIRECTIONAL
Connector Manufacturer Code02660
Connector IdentificationMC4M
Mounting MethodTHREADED BUSHING
Electrical Connection TypeINTEGRAL CABLE
Impedance Rating150.0 OHMS NOMINAL
Output Sensitivity Rating In Decib-55.0
Cancelled NSN5965-00-622-5171 (cancelled)
Overall Length4.688 INCHES NOMINAL
MaterialSTEEL COVER
Overall Height0.500 INCHES NOMINAL
Surface TreatmentCADMIUM OVERALL
Body Width4.688 INCHES NOMINAL
Distance From Center Of Mounting H1.000 INCHES NOMINAL
Cover Attachment MethodSCREW AND WASHER
Cover Opening Shape And Quantity1 ROUND
Cover Mounting Hole Quantity4
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 664 available?
We can source 664 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 664 by Bosch Security Systems, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 664 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 664?
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 664?
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.