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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir  · Electronic Components

SM-B-933877

Earphone — Headsets, Microphones, and Speakers

Part NumberSM-B-933877
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameEARPHONE
Federal Supply Class5965 — Headsets, Microphones, and Speakers
Terminal TypeSETSCREW
Terminal LocationEXTERNAL
Impedance Rating In Ohms1000.0 NOMINAL
Overall Diameter1.986 INCHES NOMINAL
Mounting MethodSCREW PLATE ON CASE BACK EARPHONE
Body StyleEARPHONE, CIRCULAR
Earphone Overall Depth0.475 INCHES NOMINAL
Terminal Quantity2
Input Terminal TypeSCREW SIGNAL
Acoustic Sensitivity Reference RatNOT RATED
Vendor Part Numbers933877
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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

Frequently asked

Is SM-B-933877 available?
We can source SM-B-933877 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 SM-B-933877 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-B-933877 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 SM-B-933877?
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 SM-B-933877?
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.