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Technical Data Sheet
PartsTable / COMPONENT / 21M65P31M
21M65P31M ✓ 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 ELECTRON TUBE is a the manufacturer industrial component. Key specifications include tube_type: CATHODE RAY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-170-2521, 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
21M65P31M
NSN: 5960-00-170-2521
FSC: 5960
CAGE: 4U430 — THOMAS ELECTRONICS, INC (USA)
SPECIFICATIONS
tube_typeCATHODE RAY
NSN5960-00-170-2521
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ELECTRON TUBE TITLE COMPONENT PN 21M65P31M MFR ELECTRON TUBE
KEY FEATURES
•
TUBE TYPE: CATHODE RAY
TECHNICAL CHARACTERISTICS (FLIS)
TUBE TYPECATHODE RAY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5681Interchangeable
interchangeable cross-reference
interchangeable
SMB209597-1Interchangeable
interchangeable cross-reference
interchangeable
A50019-3Interchangeable
interchangeable cross-reference
interchangeable
105002Interchangeable
interchangeable cross-reference
interchangeable
80805BInterchangeable
interchangeable cross-reference
interchangeable
ER-500-PCPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21M65P31M?
21M65P31M is a ELECTRON TUBE.
What parts can replace 21M65P31M?
There are 14 known substitutes for 21M65P31M: 5681, SMB209597-1, A50019-3 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21M65P31M?
21M65P31M is cataloged in the Federal Logistics Information System (FLIS) under NSN 5960-00-170-2521. 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