Detroit Switch Inc. · Electronic Components
2221181NL
Switch, Thermostatic
Part Number2221181NL
ManufacturerDetroit Switch Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-660-3647 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Features ProvidedELECTRICAL ACCESS PORT
Mounting Facility PatternISOSCELES TRIANGLE
Bulb Length3.000 INCHES NOMINAL
Hazardous Locations EnvironmentalDUSTPROOF AND VIBRATION RESISTANT AND WATERTIGHT
Longest Vertical Distance Between3.281 INCHES NOMINAL
Contact Voltage Rating In Volts440.0 DC AT SEA LEVEL SEVENTH VOLTAGE
Unthreaded Mounting Hole Diameter0.281 INCHES NOMINAL
Bulb Diameter0.375 INCHES NOMINAL
Contact Load Current Rating4.0 AMPERES INDUCTIVE LOAD THIRD VOLTAGE
Overall Width2.812 INCHES NOMINAL
Media For Which DesignedGAS OR LIQUID
Vendor Part Numbers222-10NL222497
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 2221181NL available?
We can source 2221181NL 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 2221181NL by Detroit Switch Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 2221181NL 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 2221181NL?
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 2221181NL?
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.