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Technical Data Sheet
PartsTable / COMPONENT / 2018-4 ITEM 7
2018-4 ITEM 7 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BUSHING,SLEEVE is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-486-4127, 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 7
NSN: 3120-01-486-4127
FSC: 3120
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
Part Number2018-4 ITEM 7
NSN3120-01-486-4127
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2018-4 ITEM 7 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2018-4Interchangeable
interchangeable cross-reference
interchangeable
518-5794755Interchangeable
interchangeable cross-reference
interchangeable
SALFBS-9Interchangeable
interchangeable cross-reference
interchangeable
518-5794755 ITEM 6Interchangeable
interchangeable cross-reference
interchangeable
2018-4 ITEM 6Interchangeable
interchangeable cross-reference
interchangeable
518-5794755 ITEM 18Interchangeable
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 7?
2018-4 ITEM 7 is a BUSHING,SLEEVE.
What parts can replace 2018-4 ITEM 7?
There are 15 known substitutes for 2018-4 ITEM 7: 2018-4, 518-5794755, SALFBS-9 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2018-4 ITEM 7?
2018-4 ITEM 7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-486-4127. 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