MIL-SPEC · Electronic Components
H-301/U
Earphone — Headsets, Microphones, and Speakers
Part NumberH-301/U
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5965-00-106-1612 (NSN)
Federal Item NameEARPHONE
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Mounting MethodSCREW PLATE ON CASE BACK EARPHONE
Test Data Document81349-MILE5589 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Shell MaterialSTEEL EARPHONE
Output Sensitivity Rating In Decib106.0 AND 112.0
Impedance Rating In Ohms300.0 NOMINAL
Frequency Response Range In Hertz+400.0 TO 7000.0
Overall Diameter2.050 INCHES NOMINAL
Acoustic Sensitivity Reference Rat0.0002 DYNES PER SQ CENTIMETER
Impedance Matching Device TypeTRANSFORMER
Terminal Quantity2
Terminal LocationINTERNAL
Cancelled NSN5965-00-295-8959 (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-301/U available?
We can source H-301/U 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-301/U by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If H-301/U 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-301/U?
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-301/U?
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.