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Technical Data Sheet
PartsTable / COMPONENT / 2018-4 ITEM 4
2018-4 ITEM 4 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include bore_shape: STRAIGHT BOTH ENDS, bore_length: 0.7200 INCHES NOMINAL BOTH ENDS IN, design_type: CLAMPING HUB, bore_diameter: 0.6250 INCHES NOMINAL BOTH ENDS IN, overall_length: 2.260 INCHES NOMINAL IN, outside_diameter: 1.410 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 3010-01-444-4326, 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
2018-4 ITEM 4
NSN: 3010-01-444-4326
FSC: 3010
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
bore_shapeSTRAIGHT BOTH ENDS
bore_length0.7200 INCHES NOMINAL BOTH ENDS IN
design_typeCLAMPING HUB
bore_diameter0.6250 INCHES NOMINAL BOTH ENDS IN
overall_length2.260 INCHES NOMINAL IN
outside_diameter1.410 INCHES NOMINAL IN
features_providedKEYWAY
end_item_identificationWEAPONS SYSTEM SEAWOLF CLASS SSN
NSN3010-01-444-4326
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLING,SHAFT,FLEXIBLE TITLE COMPONENT PN 2018-4 ITEM 4 MFR COUPLING,SHAFT,FLEXIBL
KEY FEATURES
•
FEATURES PROVIDED: KEYWAY
•
BORE DIAMETER: 0.6250 INCHES NOMINAL BOTH ENDS IN
•
DESIGN TYPE: CLAMPING HUB
•
OUTSIDE DIAMETER: 1.410 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT BOTH ENDS
•
BORE LENGTH: 0.7200 INCHES NOMINAL BOTH ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONWEAPONS SYSTEM SEAWOLF CLASS SSN
FEATURES PROVIDEDKEYWAY
OVERALL LENGTH2.260 INCHES NOMINAL IN
BORE DIAMETER0.6250 INCHES NOMINAL BOTH ENDS IN
DESIGN TYPECLAMPING HUB
OUTSIDE DIAMETER1.410 INCHES NOMINAL IN
BORE SHAPESTRAIGHT BOTH ENDS
BORE LENGTH0.7200 INCHES NOMINAL BOTH ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
7588Interchangeable
interchangeable cross-reference
interchangeable
13300Interchangeable
interchangeable cross-reference
interchangeable
AS4857Interchangeable
interchangeable cross-reference
interchangeable
4730PL1424186Interchangeable
interchangeable cross-reference
interchangeable
180331Interchangeable
interchangeable cross-reference
interchangeable
13300JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2018-4 ITEM 4?
2018-4 ITEM 4 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 2018-4 ITEM 4?
There are 24 known substitutes for 2018-4 ITEM 4: 7588, 13300, AS4857 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2018-4 ITEM 4?
2018-4 ITEM 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3010-01-444-4326. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026