MIL-SPEC · Electronic Components
H-143/A1C
Earphone Element
Part NumberH-143/A1C
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-615-0104 (NSN)
Federal Item NameEARPHONE ELEMENT
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Terminal Quantity2
Nondefinitive Spec Std Data35.000GM WEIGHT
Output Sensitivity Rating In Decib100.0 AND 105.0
FSC Application DataHEADSETS,HANDSETS,MICROPHONES AND SPEAKERS
Test Data Document81349-MIL-E-25670 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Terminal TypeSETSCREW
Frequency Response Range In Hertz+100.0 TO 5000.0
Impedance Rating In Ohms19.0 NOMINAL
Earphone Element Depth0.435 INCHES MINIMUM AND 0.465 INCHES MAXIMUM
Overall Diameter1.971 INCHES MINIMUM AND 1.986 INCHES MAXIMUM
Earphone Element TypeDYNAMIC
Cancelled NSN5965-00-784-9300 (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 H-143/A1C available?
We can source H-143/A1C 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 H-143/A1C by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If H-143/A1C 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 H-143/A1C?
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 H-143/A1C?
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.