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A51C31577 — BELL CRANK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A51C31577: BELL CRANK.

The BELL CRANK is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, center_to_center_distance_between_fulcrum_and_arm_end_hole/slot/ball: 3.730 INCHES NOMINAL FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-238-8035, 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
A51C31577
NSN: 3040-01-238-8035
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
center_to_center_distance_between_fulcrum_and_arm_end_hole/slot/ball3.730 INCHES NOMINAL FIRST END IN
NSN3040-01-238-8035
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BELL CRANK TITLE COMPONENT PN A51C31577 MFR BELL CRANK
KEY FEATURES
•
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL: 4.000 INCHES NOMINAL SECOND END IN
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL4.000 INCHES NOMINAL SECOND END IN
CENTER TO CENTER DISTANCE BETWEEN FULCRUM AND ARM END HOLE/SLOT/BALL3.730 INCHES NOMINAL FIRST END 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 1
A51C31577-3Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51C31577?
A51C31577 is a BELL CRANK.
What parts can replace A51C31577?
There is 1 known substitute for A51C31577: A51C31577-3. Substitute compatibility should be verified for your specific system.
What is the NSN for A51C31577?
A51C31577 is cataloged in the U.S. Government catalog under NSN 3040-01-238-8035. 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.