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374578-3 — BELL CRANK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

374578-3: BELL CRANK.

The BELL CRANK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, bore_diameter: 3.7500 INCHES MINIMUM AND 3.7512 INCHES MAXIMUM IN, fsc_application_data: BOOSTER,HYDRAULIC ELEVATOR CONTROL 1650007849693 374461-605, end_hole/ball_diameter: 1.875 INCHES NOMINAL SECOND END IN, center_to_center_distance_between_fulcrum_and_arm_end_hole/slot/ball: 8.213 INCHES MINIMUM AND 8.287 INCHES MAXIMUM SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-772-5114, 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
374578-3
NSN: 3040-00-772-5114
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
bore_diameter3.7500 INCHES MINIMUM AND 3.7512 INCHES MAXIMUM IN
fsc_application_dataBOOSTER,HYDRAULIC ELEVATOR CONTROL 1650007849693 374461-605
end_hole/ball_diameter1.875 INCHES NOMINAL SECOND END IN
center_to_center_distance_between_fulcrum_and_arm_end_hole/slot/ball8.213 INCHES MINIMUM AND 8.287 INCHES MAXIMUM SECOND END IN
NSN3040-00-772-5114
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BELL CRANK TITLE COMPONENT PN 374578-3 MFR BELL CRANK
KEY FEATURES
•
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL: 5.840 INCHES NOMINAL FIRST END IN
•
END HOLE/BALL DIAMETER: 1.875 INCHES NOMINAL SECOND END IN
•
FSC APPLICATION DATA: BOOSTER,HYDRAULIC ELEVATOR CONTROL 1650007849693 374461-605
•
BORE DIAMETER: 3.7500 INCHES MINIMUM AND 3.7512 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL5.840 INCHES NOMINAL FIRST END IN
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL8.213 INCHES MINIMUM AND 8.287 INCHES MAXIMUM SECOND END IN
END HOLE/BALL DIAMETER1.875 INCHES NOMINAL SECOND END IN
END HOLE/BALL DIAMETER0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM FIRST END IN
FSC APPLICATION DATABOOSTER,HYDRAULIC ELEVATOR CONTROL 1650007849693 374461-605
BORE DIAMETER3.7500 INCHES MINIMUM AND 3.7512 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 374578-3?
374578-3 is a BELL CRANK.
What is the NSN for 374578-3?
374578-3 is cataloged in the U.S. Government catalog under NSN 3040-00-772-5114. 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.