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2121C20101-1203 — BACKSHELL,ELECTRICAL CONNECTOR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2121C20101-1203: BACKSHELL,ELECTRICAL CONNECTOR.

The BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thread_class: 2B, overall_width: 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN, overall_height: 1.468 INCHES NOMINAL IN, overall_length: 5.531 INCHES NOMINAL IN, size_designation: 20. This part is cataloged in the U.S.

Government catalog under NSN 5935-00-720-0437, 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
2121C20101-1203
NSN: 5935-00-720-0437
FSC: 5935 — Connectors, Electrical
CAGE: 31461 — ELECTRO ADAPTER INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_class2B
overall_width1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
overall_height1.468 INCHES NOMINAL IN
overall_length5.531 INCHES NOMINAL IN
size_designation20
style_designatorSTRAIGHT TYPE W/CABLE CLAMP
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE
nominal_thread_size1.188 INCHES IN
nominal_thread_length0.247 INCHES IN
cable_opening_diameter0.375 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NSN5935-00-720-0437
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BACKSHELL,ELECTRICAL CONNECTOR TITLE COMPONENT PN 2121C20101-1203 MFR BACKSHELL,ELECTRICAL C
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED COUPLING
•
NOMINAL THREAD LENGTH: 0.247 INCHES IN
•
STYLE DESIGNATOR: STRAIGHT TYPE W/CABLE CLAMP
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.188 INCHES IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED COUPLING
OVERALL HEIGHT1.468 INCHES NOMINAL IN
NOMINAL THREAD LENGTH0.247 INCHES IN
STYLE DESIGNATORSTRAIGHT TYPE W/CABLE CLAMP
OVERALL LENGTH5.531 INCHES NOMINAL IN
OVERALL WIDTH1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.188 INCHES IN
CABLE OPENING QUANTITY1
SIZE DESIGNATION20
OTHER ITEMS IN FSC 5935 — Connectors, Electrical
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5935-00-000-8180 5935-00-001-1344 5935-00-001-1347 5935-00-001-1350 5935-00-001-1351 5935-00-001-1353 5935-00-001-1627 5935-00-001-1628
SUBSTITUTES & CROSS-REFERENCES 1
2121-20101-1203Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2121C20101-1203?
2121C20101-1203 is a BACKSHELL,ELECTRICAL CONNECTOR.
What parts can replace 2121C20101-1203?
There is 1 known substitute for 2121C20101-1203: 2121-20101-1203. Substitute compatibility should be verified for your specific system.
What is the NSN for 2121C20101-1203?
2121C20101-1203 is cataloged in the U.S. Government catalog under NSN 5935-00-720-0437. 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.