MIL-SPEC · Electronic Components
M-51/UR
Microphone, Carbon
Part NumberM-51/UR
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-295-8966 (NSN)
Federal Item NameMICROPHONE,CARBON
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Output Sensitivity Rating In Decib115.0
Polarity ConnectionNOT REQUIRED
Output Sensitivity Rating Referenc0.0002 DYNES PER SQ CENTIMETER
Height0.516 INCHES NOMINAL
Electrical Connection TypeCONNECTOR RECEPTACLE
Test Data Document81349-MIL-M-5794 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Frequency Response Range In Hertz+300.0 TO 4000.0
Sound Pickup Directional TypeUNIDIRECTIONAL
Length1.406 INCHES NOMINAL
Width1.250 INCHES NOMINAL
Dc Resistance Rating In Ohms100.0 NOMINAL
Cancelled NSN5965-00-351-3199 (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 M-51/UR available?
We can source M-51/UR 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 M-51/UR by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M-51/UR 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 M-51/UR?
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 M-51/UR?
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.