Sensata Technologies, Inc. · Electronic Components
AT221-1-3
Switch, Sensitive
Part NumberAT221-1-3
ManufacturerSensata Technologies, Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-929-1635 (NSN)
Federal Item NameSWITCH,SENSITIVE
Federal Supply Class5930 — Switches
Body Height0.300 INCHES NOMINAL
Inclosure TypeFULLY INCLOSED
Overall Height0.300 INCHES NOMINAL
Bushing Length0.745 INCHES NOMINAL
Contact Load Current Rating At Max3.000 AMPERES RESISTIVE DC
Thread Series DesignatorUN
Switch Actuating Force128.0 OUNCES MAXIMUM
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT
Actuator Movement0.020 PRETRAVEL INCHES MAXIMUM AND 0.125 OVERTRAVEL INCHES MINIMUM AND 0.020 DIFFERENTIAL INCHES NOMINAL
Nominal Thread Size0.438 INCHES
Actuator Height0.145 INCHES MINIMUM
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 AT221-1-3 available?
We can source AT221-1-3 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 AT221-1-3 by Sensata Technologies, Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AT221-1-3 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 AT221-1-3?
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 AT221-1-3?
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.