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PartsTable / COMPONENT / B3221-16
B3221-16 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include body_length: 0.438 INCHES MAXIMUM IN, overall_width: 0.750 INCHES MAXIMUM IN, terminal_type: WIRE LEAD, overall_height: 0.625 INCHES NOMINAL IN, overall_length: 1.938 INCHES NOMINAL IN, mounting_method: WIRE LEAD TERMINAL(S) AND UNTHREADED HOLE(S). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-296-9258, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B3221-16
NSN: 5930-00-296-9258
FSC: 5930
CAGE: 15280 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION (USA)
SPECIFICATIONS
body_length0.438 INCHES MAXIMUM IN
overall_width0.750 INCHES MAXIMUM IN
terminal_typeWIRE LEAD
overall_height0.625 INCHES NOMINAL IN
overall_length1.938 INCHES NOMINAL IN
mounting_methodWIRE LEAD TERMINAL(S) AND UNTHREADED HOLE(S)
style_designatorRECTANGULAR
features_providedHERMETICALLY SEALED CASE
contact_adjustabilityDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
contact_action_stimulusINCREASE
contact_stimulus_rating20.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 15.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
media_for_which_designedGAS
NSN5930-00-296-9258
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN B3221-16 MFR SWITCH,THERMOSTATIC
KEY FEATURES
•
MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE
•
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
•
TERMINAL TYPE: WIRE LEAD
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 0.500 INCHES NOMINAL IN
•
CONTACT ADJUSTABILITY: DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
•
MEDIA FOR WHICH DESIGNED: GAS
•
CONTACT LOAD CURRENT RATING: 1.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY PATTERNTWO POSITION IN-LINE
NONPILE-UP CONTACT ARRANGEMENT1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
OVERALL HEIGHT0.625 INCHES NOMINAL IN
TERMINAL TYPEWIRE LEAD
DISTANCE BETWEEN MOUNTING FACILITY CENTERS0.500 INCHES NOMINAL IN
CONTACT ADJUSTABILITYDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
MEDIA FOR WHICH DESIGNEDGAS
CONTACT LOAD CURRENT RATING1.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE
CONTACT VOLTAGE RATING IN VOLTS115.0 AC AT SEA LEVEL SINGLE VOLTAGE
STYLE DESIGNATORRECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
131-309-3Interchangeable
interchangeable cross-reference
interchangeable
ST293Interchangeable
interchangeable cross-reference
interchangeable
1M130-1Interchangeable
interchangeable cross-reference
interchangeable
12512Interchangeable
interchangeable cross-reference
interchangeable
43005Interchangeable
interchangeable cross-reference
interchangeable
42-004044-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3221-16?
B3221-16 is a SWITCH,THERMOSTATIC.
What parts can replace B3221-16?
There are 16 known substitutes for B3221-16: 131-309-3, ST293, 1M130-1 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B3221-16?
B3221-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-296-9258. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026