Electro Switch Corp. · Electronic Components
B-7857
Switch, Rotary
Part NumberB-7857
ManufacturerElectro Switch Corp.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-856-6976 (NSN)
Federal Item NameSWITCH,ROTARY
Federal Supply Class5930 — Switches
Shaft TypeROUND SINGLE ACTUATOR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY
Overall Width0.938 INCHES NOMINAL
Nonturn Device TypeTAB AT 10:30 OCLOCK
Nonturn Device Radius0.375 INCHES NOMINAL AT 10:30 OCLOCK
Contact Voltage Rating In Volts110.0 AC AT SEA LEVEL
Pole Quantity1 SECOND SECTION FRONT
Throw Quantity2 FIRST SECTION FRONT
Thread Class2A SINGLE MOUNTING FACILITY
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR
Terminal TypeTAB, SOLDER LUG
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 B-7857 available?
We can source B-7857 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 B-7857 by Electro Switch Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B-7857 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 B-7857?
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 B-7857?
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.