MIL-SPEC · Electronic Components
M-138/G
Microphone, Dynamic
Part NumberM-138/G
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-937-1851 (NSN)
Federal Item NameMICROPHONE,DYNAMIC
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Functional Description150 OHM MICROPHONE WITH BOOM AND CORD ASSEMBLY FOR USE ON HEADSET-MICROPHONES AND HELMETS.
Test Data Document81349-MIL-M-26542 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
MaterialPLASTIC CASE
Height0.706 INCHES NOMINAL
Cable Shielded Conductor Quantity2
Accessory ComponentsCORD AND CONNECTOR
Connector Manufacturer Code81350
Frequency Response Range In Hertz+300.0 TO 3500.0
Extended Cable Length1.0 FEET NOMINAL
Electrical Connection TypeINTEGRAL CORD
Connector IdentificationJJ-055
Cancelled NSN5965-00-930-0128 (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-138/G available?
We can source M-138/G 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-138/G by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M-138/G 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-138/G?
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-138/G?
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.