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421659 ✓ 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 body_width: 1.812 INCHES NOMINAL IN, body_height: 2.437 INCHES NOMINAL IN, body_length: 1.937 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING, inclosure_type: HERMETICALLY SEALED, inductance_type: FIXED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2840-00-076-6084, 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
421659
NSN: 2840-00-076-6084
FSC: 2840
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
body_width1.812 INCHES NOMINAL IN
body_height2.437 INCHES NOMINAL IN
body_length1.937 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeHERMETICALLY SEALED
inductance_typeFIXED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
special_featuresULTRASOUND SET APPARATUS AND COMPONENTS;SHORT SHELF LIFE; FOR COMPONENTS LIST SEE MMS C335
winding_quantity1 SINGLE COMPONENT
inductance_rating150.00 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
NSN2840-00-076-6084
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 421659 MFR FILTER,RADIO FREQUENCY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
421659Interchangeable
interchangeable cross-reference
interchangeable
7540258Interchangeable
interchangeable cross-reference
interchangeable
3ZT0681CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421659?
421659 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 421659?
There are 3 known substitutes for 421659: 421659, 7540258, 3ZT0681C. Substitute compatibility should be verified for your specific system.
What is the NSN for 421659?
421659 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2840-00-076-6084. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026