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B20353 — RETAINER,ELECTRON TUBE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B20353: RETAINER,ELECTRON TUBE.

The RETAINER,ELECTRON TUBE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 2.125 INCHES NOMINAL IN, overall_height: 0.281 INCHES NOMINAL IN, overall_length: 2.688 INCHES NOMINAL IN, style_designator: IRREGULAR, unthreaded_mounting_hole_diameter: 0.197 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. This part is cataloged in the U.S.

Government catalog under NSN 5960-00-636-0976, 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
B20353
NSN: 5960-00-636-0976
FSC: 5960 — Electron Tubes and Associated Hardware
CAGE: 96458 — JAMES IPPOLITO & CO. OF CONNECTICUT, INC. DBA IPPOLITO JAMES & CO OF CT INC (USA)
SPECIFICATIONS
materialSTEEL
overall_width2.125 INCHES NOMINAL IN
overall_height0.281 INCHES NOMINAL IN
overall_length2.688 INCHES NOMINAL IN
style_designatorIRREGULAR
unthreaded_mounting_hole_diameter0.197 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
mounting_facility_type_and_quantity4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
accommodated_item_securing_device_typeFRICTION FASTENER
eia_electron_tube_envelope_accommodatedST16
NSN5960-00-636-0976
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RETAINER,ELECTRON TUBE TITLE COMPONENT PN B20353 MFR RETAINER,ELECTRON TUBE
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
•
EIA ELECTRON TUBE ENVELOPE ACCOMMODATED: ST16
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.197 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
STYLE DESIGNATOR: IRREGULAR
•
ACCOMMODATED ITEM SECURING DEVICE TYPE: FRICTION FASTENER
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
OVERALL HEIGHT0.281 INCHES NOMINAL IN
EIA ELECTRON TUBE ENVELOPE ACCOMMODATEDST16
UNTHREADED MOUNTING HOLE DIAMETER0.197 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
STYLE DESIGNATORIRREGULAR
OVERALL LENGTH2.688 INCHES NOMINAL IN
ACCOMMODATED ITEM SECURING DEVICE TYPEFRICTION FASTENER
OVERALL WIDTH2.125 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
BA20353Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B20353?
B20353 is a RETAINER,ELECTRON TUBE.
What parts can replace B20353?
There is 1 known substitute for B20353: BA20353. Substitute compatibility should be verified for your specific system.
What is the NSN for B20353?
B20353 is cataloged in the U.S. Government catalog under NSN 5960-00-636-0976. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.