MIL-SPEC · Electronic Components
H-143A/A1C
Earphone Element
Part NumberH-143A/A1C
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-01-094-6602 (NSN)
Federal Item NameEARPHONE ELEMENT
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Acoustic Sensitivity Reference RatNOT RATED
Body StyleEARPHONE ELEMENT, CIRCULAR
Earphone Element TypeDYNAMIC
Impedance Rating In Ohms17.0 MINIMUM AND 21.0 MAXIMUM
Reference Frequency In Hertz1000.0
Overall Diameter1.980 INCHES NOMINAL
Earphone Element Depth0.480 INCHES NOMINAL
Frequency Response Range In Hertz+100.0 TO 5500.0
Terminal TypeSETSCREW
Nondefinitive Spec Std Data35.0GM WEIGHT
FSC Application DataHEADSETS,HANDSETS,MICROPHONES AND SPEAKERS
Cancelled NSN5965-00-073-9217 (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-143A/A1C available?
We can source H-143A/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-143A/A1C by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If H-143A/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-143A/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-143A/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.