Johnson Controls Inc. Control Products Div · Electronic Components
A28AA-9
Switch, Thermostatic
Part NumberA28AA-9
ManufacturerJohnson Controls Inc. Control Products Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-190-6479 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact Adjustment Range+20.00 TO 80.00 ACTUATION POINT DEGREES FAHRENHEIT
Media For Which DesignedGAS
Frequency In Hertz60.0 SINGLE VOLTAGE
Contact Adjustment TypeEXTERNAL ACTUATION POINT KNOB WITH SCALE
Mounting Slot Width0.201 INCHES NOMINAL
Overall Height1.812 INCHES NOMINAL
Longest Horizontal Distance Betwee1.562 INCHES NOMINAL
Terminal TypeSCREW
Features ProvidedELECTRICAL ACCESS PORT
Bulb Diameter0.375 INCHES NOMINAL
Nonpile Up Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
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 A28AA-9 available?
We can source A28AA-9 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 A28AA-9 by Johnson Controls Inc. Control Products Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A28AA-9 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 A28AA-9?
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 A28AA-9?
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.