L-3 Communications Westwood Corporation · Electronic Components
705143-109
Switch, Rotary
Part Number705143-109
ManufacturerL-3 Communications Westwood Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-252-1734 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Pole Quantity28 SINGLE SECTION REAR
Throw Quantity3 SINGLE SECTION REAR
Overall Length7.250 INCHES NOMINAL
Overall Height4.380 INCHES NOMINAL
Overall Width3.750 INCHES NOMINAL
Switch Contact Basic DesignPILE-UP
Contact Voltage Rating In Volts115.0 AC AT SEA LEVEL
Style DesignatorTAP, CIRCUIT SELECTOR
Individual Section Quantity1
Switch Actuator Indexing Position3 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 705143-109 available?
We can source 705143-109 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 705143-109 by L-3 Communications Westwood Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 705143-109 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 705143-109?
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 705143-109?
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.