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Technical Data Sheet
37T21 ✓ 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_height: 0.677 INCHES NOMINAL IN, body_diameter: 1.190 INCHES NOMINAL IN, terminal_type: WIRE LEAD, overall_height: 1.156 INCHES NOMINAL IN, overall_length: 2.120 INCHES NOMINAL IN, mounting_method: BRACKET(S) AND SLOT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-174-0946, 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
37T21
NSN: 5930-00-174-0946
FSC: 5930
CAGE: 81439 — THERM-O-DISC INCORPORATED (USA)
SPECIFICATIONS
body_height0.677 INCHES NOMINAL IN
body_diameter1.190 INCHES NOMINAL IN
terminal_typeWIRE LEAD
overall_height1.156 INCHES NOMINAL IN
overall_length2.120 INCHES NOMINAL IN
mounting_methodBRACKET(S) AND SLOT
overall_diameter1.061 INCHES NOMINAL IN
special_featuresWIRE LEAD TERMINALS 8.000 IN. LG IN
style_designatorDISC
features_providedHERMETICALLY SEALED CASE
mounting_slot_width0.125 INCHES NOMINAL IN
contact_adjustabilityACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
NSN5930-00-174-0946
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 37T21 MFR SWITCH,THERMOSTATIC
KEY FEATURES
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
CONTACT STIMULUS RATING: 50.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 30.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
TERMINAL TYPE: WIRE LEAD
MOUNTING METHOD: BRACKET(S)
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS: 1.560 INCHES NOMINAL IN
CONTACT ACTION STIMULUS: INCREASE
MEDIA FOR WHICH DESIGNED: GAS
TECHNICAL CHARACTERISTICS (FLIS)
NONPILE-UP CONTACT ARRANGEMENT1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
CONTACT STIMULUS RATING50.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 30.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
TERMINAL TYPEWIRE LEAD
MOUNTING METHODBRACKET(S)
LONGEST HORIZONTAL DISTANCE BETWEEN MOUNTING CENTERS1.560 INCHES NOMINAL IN
CONTACT ACTION STIMULUSINCREASE
OVERALL LENGTH2.120 INCHES NOMINAL IN
MEDIA FOR WHICH DESIGNEDGAS
CONTACT ADJUSTABILITYDEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE
BODY HEIGHT1.030 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
UL62Interchangeable
interchangeable cross-reference
interchangeable
51525RInterchangeable
interchangeable cross-reference
interchangeable
424-0022-000Interchangeable
interchangeable cross-reference
interchangeable
44142Interchangeable
interchangeable cross-reference
interchangeable
C01030Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751 TYCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37T21?
37T21 is a SWITCH,THERMOSTATIC.
What parts can replace 37T21?
There are 17 known substitutes for 37T21: UL62, 51525R, 424-0022-000 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 37T21?
37T21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-174-0946. This indicates validated use in U.S. government and defense supply chains.
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