Mason Electric · Electronic Components
STD959-89
Switch, Sensitive
Part NumberSTD959-89
ManufacturerMason Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-428-4258 (NSN)
Federal Item NameSWITCH,SENSITIVE
Federal Supply Class5930 — Switches
Body Length0.622 INCHES NOMINAL
Contact Load Current Rating At Max5.000 AMPERES INDUCTIVE DC AND 10.000 AMPERES RESISTIVE DC
Switch Actuating Force2.3 GRAMS NOMINAL
Actuator Diameter0.295 INCHES NOMINAL
Actuator Height0.505 INCHES NOMINAL
Actuator StyleROUND, STEPPED
Switch Release Force2.3 GRAMS NOMINAL
Maximum Voltage Rating In Volts28.0 AC
Switch Actuator Quantity2
Inclosure TypeFULLY INCLOSED
Mounting MethodPRESS FIT
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 STD959-89 available?
We can source STD959-89 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 STD959-89 by Mason Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STD959-89 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 STD959-89?
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 STD959-89?
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.