Electroswitch · Electronic Components
251820-BK
Switch Section, Rotary
Part Number251820-BK
ManufacturerElectroswitch
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-920-6290 (NSN)
Federal Item NameSWITCH SECTION,ROTARY
Federal Supply Class5930 — Switches
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION REAR
Mounting Facility PatternTWO POSITION IN-LINE SINGLE MOUNTING FACILITY
Contact Load Current Rating30.0 MILLIAMPERES RESISTIVE LOAD HIGHEST DC VOLTAGE RATING AT SEA LEVEL
Precious MaterialSILVER
Mounting MethodSTRUT AND UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Terminal TypeCLIP
Longest Horizontal Distance Betwee1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY
Contact Voltage Rating In Volts300.0 HIGHEST DC VOLTAGE RATING AT SEA LEVEL
Operating Temp Range-65.0 TO 85.0 CELSIUS
Precious Material And LocationCLIPS AND ROTOR BLADE SURFACES SILVER
Unthreaded Mounting Hole Diameter0.115 INCHES NOMINAL SINGLE MOUNTING FACILITY
Vendor Part Numbers269-2611-060
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 251820-BK available?
We can source 251820-BK 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 251820-BK by Electroswitch obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 251820-BK 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 251820-BK?
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 251820-BK?
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.