The PULLEY,GROOVE is a the manufacturer industrial component. Key specifications include bearings: NOT INCLUDED, material: IRON OR IRON CAST OVERALL, bore_type: STRAIGHT, face_width: 2.500 INCHES NOMINAL IN, design_form: PLAIN, bore_feature: INCLUDED. This part is cataloged in the U.S.
Government catalog under NSN 5340-00-398-9137, 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
643B
NSN:5340-00-398-9137 NIINs:003989137, 014771081 FSC:5340 — Hardware, Commercial CAGE:830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
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FREQUENTLY ASKED QUESTIONS
What is 643B?
643B is a PULLEY,GROOVE.
What parts can replace 643B?
There is 1 known substitute for 643B: 230003P1. Substitute compatibility should be verified for your specific system.
What is the NSN for 643B?
643B is cataloged in the U.S. Government catalog under NSN 5340-00-398-9137. This indicates validated use in U.S. government and defense supply chains.
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