MIL-SPEC · Electronic Components
MS21353-821
Switch, Toggle
Part NumberMS21353-821
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-133-5919 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Actuator Position Action RelationsDOWN POSITION MOMENTARY AND CENTER POSITION MAINTAINED
Actuator Height0.687 INCHES NOMINAL
Test Data Document81349-MIL-S-8834 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DAT
Thread Quantity Per Inch32
Overall Length0.556 INCHES MAXIMUM
Actuator StyleROUND
Hazardous Locations EnvironmentalWATERTIGHT
Overall Height1.862 INCHES NOMINAL
Precious Material And LocationTERMINAL SURFACES GOLD
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Thread Series DesignatorUNS
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 MS21353-821 available?
We can source MS21353-821 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 MS21353-821 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS21353-821 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 MS21353-821?
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 MS21353-821?
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.