Mason Electric · Electronic Components
STD979-21
Switch, Push
Part NumberSTD979-21
ManufacturerMason Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-293-4020 (NSN)
Federal Item NameSWITCH,PUSH
Federal Supply Class5930 — Switches
Body Height0.134 INCHES NOMINAL
Maximum Voltage Rating In Volts100.0 DC
Body StylePANEL MOUNT
Inclosure TypeFULLY INCLOSED
Actuator Height0.051 INCHES NOMINAL
Contact Load Current Rating At Max100.000 MILLIAMPERES RESISTIVE DC
Body Length0.500 INCHES NOMINAL
Overall Length0.500 INCHES NOMINAL
Mounting MethodPANEL
Nonpile Up Contact Arrangement1 POLE, SINGLE THROW, BOTH POSITIONS MAINTAINED SINGLE SWITCH UNIT
Precious Material And LocationCONTACT SURFACES SILVER
Vendor Part NumbersMDAG
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 STD979-21 available?
We can source STD979-21 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 STD979-21 by Mason Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STD979-21 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 STD979-21?
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 STD979-21?
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.