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063984 ✓ 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 ASSEMBLY,LIGHT,CATHODE RA. Key specifications include material: STEEL OVERALL, bore_diameter: 0.8830 INCHES NOMINAL IN, overall_length: 0.9680 INCHES NOMINAL IN, end_item_identification: M374/M374A SUBMARINE PERISCOPE SYSTEM, flange_outside_diameter: 1.4220 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-01-487-0571, 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
063984
NSN: 6625-01-487-0571
FSC: 6625
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.8830 INCHES NOMINAL IN
overall_length0.9680 INCHES NOMINAL IN
special_featuresSNAP RING,3 LUGS ON OD OF OUTER RING EQUALLY SPACED,3 PRONGS ON OD OF OUTER RING EQUALLY SPACED BETWEEN LUGS,SPRING AND SPRING SEAT ASSEMBLED W/BRG
end_item_identificationM374/M374A SUBMARINE PERISCOPE SYSTEM
flange_outside_diameter1.4220 INCHES NOMINAL IN
NSN6625-01-487-0571
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER ASSEMBLY,LIGHT,CATHODE RA TITLE COMPONENT PN 063984 MFR FILTER ASSEMBLY,LIGHT,
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONM374/M374A SUBMARINE PERISCOPE SYSTEM
END ITEM IDENTIFICATIONM374/M374A SUBMARINE PERISCOPE SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
063984Interchangeable
interchangeable cross-reference
interchangeable
88771HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 063984?
063984 is a FILTER ASSEMBLY,LIGHT,CATHODE RA.
What parts can replace 063984?
There are 2 known substitutes for 063984: 063984, 88771H. Substitute compatibility should be verified for your specific system.
What is the NSN for 063984?
063984 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-01-487-0571. 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