Chromalox · Electronic Components
AR-219
Switch, Thermostatic
Part NumberAR-219
ManufacturerChromalox
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-01-277-2116 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Mounting Facility PatternFOUR POSITION RECTANGULAR
Temp Sensing Element TypeCAPILLARY TUBE-BULB
Contact Action StimulusINCREASE
Terminal TypeTAB W/SCREW
Bulb Length10.750 INCHES NOMINAL
Longest Horizontal Distance Betwee2.438 INCHES NOMINAL
Overall Height3.125 INCHES NOMINAL
Nonpile Up Contact Arrangement2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Mounting MethodUNTHREADED HOLE(S)
Bulb Diameter0.188 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.281 INCHES NOMINAL
Vendor Part Numbers263054
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 AR-219 available?
We can source AR-219 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 AR-219 by Chromalox obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AR-219 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 AR-219?
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 AR-219?
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.