MIL-SPEC · Electronic Components
MS21351-321
Switch, Toggle
Part NumberMS21351-321
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-014-5949 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Thread Series DesignatorUNS
Test Data Document81349-MILS8834 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA
Contact Load Current Rating At Max4.000 AMPERES RESISTIVE DC AND 1.000 AMPERES INDUCTIVE DC AND 3.000 AMPERES RESISTIVE AC AND 1.000 AMPERES INDUCTIVE AC
Criticality Code JustificationFEAT
Terminal Type And Quantity3 TAB, SOLDER LUG
Nonpile Up Contact Arrangement1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Maximum Voltage Rating In Volts115.0 AC AND 28.0 DC
Body Length0.562 INCHES MAXIMUM
Features ProvidedACTUATOR SEAL
Mounting Surface To Terminal End D0.706 INCHES MAXIMUM
Actuator StyleROUND
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 MS21351-321 available?
We can source MS21351-321 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 MS21351-321 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS21351-321 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 MS21351-321?
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 MS21351-321?
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.