PartsTable
Technical Data Sheet
PartsTable / COMPONENT / T21
T21 ✓ 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_width: 0.270 INCHES MAXIMUM IN, bore_shape: STRAIGHT BOTH ENDS, body_height: 0.230 INCHES MAXIMUM IN, body_length: 0.300 INCHES MAXIMUM IN, bore_length: 0.3900 INCHES NOMINAL BOTH ENDS IN, design_type: SPRING WASHER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-869-2399, 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
T21
NSN: 6625-00-869-2399
FSC: 6625
CAGE: 21647 — MERCIER RESEARCH AND DEVELOPMENT CO (USA)
SPECIFICATIONS
body_width0.270 INCHES MAXIMUM IN
bore_shapeSTRAIGHT BOTH ENDS
body_height0.230 INCHES MAXIMUM IN
body_length0.300 INCHES MAXIMUM IN
bore_length0.3900 INCHES NOMINAL BOTH ENDS IN
design_typeSPRING WASHER
bore_diameter0.1250 INCHES NOMINAL BOTH ENDS IN
terminal_typeTAB W/SCREW
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeFULLY INCLOSED
overall_height2.650 INCHES NOMINAL IN
overall_length1.5625 INCHES NOMINAL IN
NSN6625-00-869-2399
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN T21 MFR SWITCH,THERMOSTATIC
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONELECTRONIC TEST EQUIPMENT
SPECIAL FEATURESORIGIONAL NAME TEST SET,OIL,PORTABLE
END ITEM IDENTIFICATIONELECTRONIC TEST EQUIPMENT
SPECIAL FEATURESORIGIONAL NAME TEST SET,OIL,PORTABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
0T21Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
Ready to buy T21?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is T21?
T21 is a SWITCH,THERMOSTATIC.
What parts can replace T21?
There is 1 known substitute for T21: 0T21. Substitute compatibility should be verified for your specific system.
What is the NSN for T21?
T21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-869-2399. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — T21

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026