The F4557 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 2920-00-780-0817, 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
F4557
NSN:2920-00-780-0817 FSC:2920 — Engine Electrical System Components, Nonaircraft CAGE:72850 — PUROLATOR PRODUCTS CO DIV MOTOR COMPONENTS, LLC (USA)
SPECIFICATIONS
Part Number
F4557
NSN
2920-00-780-0817
COMPONENT DIAGRAM
OTHER ITEMS IN FSC 2920 — Engine Electrical System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is F4557?
F4557 is a F4557.
What parts can replace F4557?
There is 1 known substitute for F4557: 1902709. Substitute compatibility should be verified for your specific system.
What is the NSN for F4557?
F4557 is cataloged in the U.S. Government catalog under NSN 2920-00-780-0817. This indicates validated use in U.S. government and defense supply chains.
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