MIL-SPEC · Electronic Components
MS27789-21D
Switch, Toggle
Part NumberMS27789-21D
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-393-8321 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Body Length1.660 INCHES MAXIMUM
Nonpile Up Contact Arrangement4 POLE, DOUBLE THROW, THREE POSITIONS MAINTAINED SINGLE SWITCH UNIT
Contact Load Current Rating At Max7.500 AMPERES RESISTIVE AC AND 7.500 AMPERES INDUCTIVE AC AND 4.000 AMPERES LAMP AC AND 7.500 AMPERES RESISTIVE DC AND 7
Actuator Height1.050 INCHES NOMINAL
ESD/EMICode A — ESD/EMI sensitive item
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 MS27789-21D available?
We can source MS27789-21D 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 MS27789-21D by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS27789-21D 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 MS27789-21D?
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 MS27789-21D?
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.