MIL-SPEC · Electronic Components
MS90310-321
Switch, Toggle
Part NumberMS90310-321
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-018-0921 (NSN)
Federal Item NameSWITCH,TOGGLE
Federal Supply Class5930 — Switches
Maximum Voltage Rating In Volts115.0 AC AND 50.0 DC
Actuator Height0.655 INCHES MINIMUM AND 0.719 INCHES MAXIMUM
Overall Height1.898 INCHES MAXIMUM
Body Length0.562 INCHES MAXIMUM
Inclosure TypeUNINCLOSED
Terminal Type And Quantity6 PRINTED CIRCUIT
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Contact Load Current Rating At Max1.000 AMPERES RESISTIVE DC AND 1.000 AMPERES INDUCTIVE DC AND 3.000 AMPERES RESISTIVE AC AND 1.000 AMPERES INDUCTIVE AC
Body Width0.354 INCHES MAXIMUM
Bushing Length0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
Hazardous Locations EnvironmentalDRIPTIGHT
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 MS90310-321 available?
We can source MS90310-321 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 MS90310-321 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS90310-321 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 MS90310-321?
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 MS90310-321?
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.