MIL-SPEC · Electronic Components
MS27789-1A
Switch, Toggle
Part NumberMS27789-1A
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-344-5619 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Thread Series DesignatorUNS
Contact Load Current Rating At Max7.500 AMPERES RESISTIVE DC AND 7.500 AMPERES INDUCTIVE DC AND 5.000 AMPERES LAMP DC AND 7.500 AMPERES RESISTIVE AC AND 7
Actuator Height1.140 INCHES NOMINAL
Features ProvidedMOUNTING HARDWARE
Mounting MethodTHREADED BUSHING
Inclosure TypeFULLY INCLOSED
Overall Length1.660 INCHES MAXIMUM
Thread Class2A
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, THREE POSITIONS MAINTAINED SINGLE SWITCH UNIT
Thread Quantity Per Inch32
Overall Width1.340 INCHES MAXIMUM
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 MS27789-1A available?
We can source MS27789-1A 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 MS27789-1A by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS27789-1A 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 MS27789-1A?
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 MS27789-1A?
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.