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421387 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include end_item_identification: ACFT ENG R3350, general_characteristics_item_description: FOR MAGNETO DRIVE GEAR OIL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-049-0378, 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
421387
NSN: 2810-00-049-0378
FSC: 2810
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
end_item_identificationACFT ENG R3350
general_characteristics_item_descriptionFOR MAGNETO DRIVE GEAR OIL
NSN2810-00-049-0378
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 421387 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: FOR MAGNETO DRIVE GEAR OIL
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONFOR MAGNETO DRIVE GEAR OIL
END ITEM IDENTIFICATIONACFT ENG R3350
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
283550-1486Interchangeable
interchangeable cross-reference
interchangeable
65S136881Interchangeable
interchangeable cross-reference
interchangeable
RMHP24H111Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421387?
421387 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 421387?
There are 3 known substitutes for 421387: 283550-1486, 65S136881, RMHP24H111. Substitute compatibility should be verified for your specific system.
Is 421387 still available?
421387 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