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Technical Data Sheet
PartsTable / MRO / 20T21-26580
20T21-26580 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 material: STEEL METER CASE, bulb_type: PLAIN RIGID, case_type: VAPORPROOF, bulb_style: PLAIN BULB W/BENDABLE EXTENSION, scale_type: CONCENTRIC DIAL, case_diameter: 2.063 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-955-9903, 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
MRO→ MRO_GENERAL→ 20T21-26580
NSN: 5930-00-955-9903
FSC: 5930
CAGE: 81439 — THERM-O-DISC INCORPORATED (USA)
SPECIFICATIONS
materialSTEEL METER CASE
bulb_typePLAIN RIGID
case_typeVAPORPROOF
bulb_stylePLAIN BULB W/BENDABLE EXTENSION
scale_typeCONCENTRIC DIAL
bulb_quantity1
case_diameter2.063 INCHES NOMINAL IN
dial_diameter2.000 INCHES NOMINAL IN
bulb_tip_length1.500 INCHES NOMINAL IN
actuating_mediumVAPOR TENSION
style_designatorBULB W/O SOCKET
bulb_overall_length2.250 INCHES NOMINAL IN
NSN5930-00-955-9903
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,THERMOSTATIC TITLE COMPONENT PN 20T21-26580 MFR SWITCH,THERMOSTATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
20T21Interchangeable
interchangeable cross-reference
interchangeable
101498Interchangeable
interchangeable cross-reference
interchangeable
10350060Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20T21-26580?
20T21-26580 is a SWITCH,THERMOSTATIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 20T21-26580?
There are 3 known substitutes for 20T21-26580: 20T21, 101498, 10350060. Substitute compatibility should be verified for your specific system.
What is the NSN for 20T21-26580?
20T21-26580 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-955-9903. 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