MIL-SPEC · Electronic Components
543-2
Switch, Toggle
Part Number543-2
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-539-7169 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Thread Quantity Per Inch32
Body Diameter0.750 INCHES NOMINAL
Maximum Voltage Rating In Volts115.0 AC AND 28.0 DC
Contact Load Current Rating At Max20.000 AMPERES RESISTIVE DC AND 15.000 AMPERES INDUCTIVE DC AND 7.000 AMPERES LAMP DC AND 20.000 AMPERES RESISTIVE AC AN
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Overall Length2.282 INCHES NOMINAL
Nominal Thread Size0.469 INCHES
Actuator Height0.688 INCHES NOMINAL
Actuator StyleROUND
Thread Series DesignatorUNS
Body Length1.125 INCHES NOMINAL
Vendor Part NumbersNAS543-2
Cancelled NSN5930-00-932-7156 (cancelled)
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 543-2 available?
We can source 543-2 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 543-2 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 543-2 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 543-2?
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 543-2?
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.