Telephone Company Of America Incorporated · Electronic Components
D12178-1
Switch, Rotary
Part NumberD12178-1
ManufacturerTelephone Company Of America Incorporated
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-327-7854 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Pile Up Contact Form Arrangement2A1A SINGLE SWITCH SINGLE SECTION IN-LINE
Contact Voltage Rating In Volts48.0 DC AT SEA LEVEL
Terminal TypeTAB, SOLDER LUG
Switch Actuator Indexing Position2 SINGLE ACTUATOR
Shaft Diameter0.453 INCHES NOMINAL SINGLE ACTUATOR
Switch Actuator Positioning Increm90.0 DEGREES SINGLE ACTUATOR
Switch Contact Basic DesignPILE-UP
Individual Section Quantity1
Mounting MethodUNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Contact Load Current Rating1.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
Shaft Length1.000 INCHES NOMINAL SINGLE ACTUATOR
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 D12178-1 available?
We can source D12178-1 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 D12178-1 by Telephone Company Of America Incorporated obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D12178-1 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 D12178-1?
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 D12178-1?
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.