Northrop Grumman Systems Corporation · Electronic Components
B3221-5
Switch, Thermostatic
Part NumberB3221-5
ManufacturerNorthrop Grumman Systems Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5930-00-549-0158 (NSN)
Federal Item NameSWITCH,THERMOSTATIC
Federal Supply Class5930 — Switches
Contact Action StimulusINCREASE
Temp Sensing Element TypeINTERNAL SENSOR
Mounting Facility PatternTWO POSITION IN-LINE
Style DesignatorDISC W/FLANGE
Contact AdjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
Frequency In Hertz400.0 SINGLE VOLTAGE
Contact Stimulus Rating170.00 ACTUATION POINT MINIMUM DEGREES FAHRENHEIT AND 180.00 ACTUATION POINT MAXIMUM DEGREES FAHRENHEIT AND 150.00 DEACT
Contact Load Current Rating8.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
Overall Diameter0.766 INCHES NOMINAL
Distance Between Mounting Facility1.125 INCHES NOMINAL
Overall Height1.047 INCHES NOMINAL
Cancelled NSN5930-00-327-8002 (cancelled)
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 B3221-5 available?
We can source B3221-5 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 B3221-5 by Northrop Grumman Systems Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If B3221-5 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 B3221-5?
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 B3221-5?
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.