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Technical Data Sheet
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52121A ✓ 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 BELL CRANK is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-392-7755, 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
52121A
NSN: 3040-00-392-7755
FSC: 3040
CAGE: 82423 — KLEINSCHMIDT INC (USA)
SPECIFICATIONS
Part Number52121A
NSN3040-00-392-7755
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BELL CRANK TITLE COMPONENT PN 52121A MFR BELL CRANK
KEY FEATURES
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FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT
TECHNICAL CHARACTERISTICS (FLIS)
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
11590Interchangeable
interchangeable cross-reference
interchangeable
65C35476-1Interchangeable
interchangeable cross-reference
interchangeable
72291Interchangeable
interchangeable cross-reference
interchangeable
116556978Interchangeable
interchangeable cross-reference
interchangeable
53409Interchangeable
interchangeable cross-reference
interchangeable
45488Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52121A?
52121A is a BELL CRANK.
What parts can replace 52121A?
There are 15 known substitutes for 52121A: 11590, 65C35476-1, 72291 and 12 more. Substitute compatibility should be verified for your specific system.
Is 52121A still available?
52121A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026