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Technical Data Sheet
PartsTable / COMPONENT / 60303980
60303980 ✓ 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include special_features: AF T.O. 6J15-10-66-173;UPGRADE OF NSN 4810-007133144-INTERNAL PARTS ALTERED AND IMPROVED SAFETY OF FLIGHT ASPECTS, end_item_identification: KC-135 SUPPORT.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-296-7732, 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
60303980
NSN: 3120-01-296-7732
FSC: 3120
CAGE: 09651 — MIBA INDUSTRIAL BEARINGS U.S. LLC (USA)
SPECIFICATIONS
special_featuresAF T.O. 6J15-10-66-173;UPGRADE OF NSN 4810-007133144-INTERNAL PARTS ALTERED AND IMPROVED SAFETY OF FLIGHT ASPECTS
end_item_identificationKC-135 SUPPORT
NSN3120-01-296-7732
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 60303980 · 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 4
522250Interchangeable
interchangeable cross-reference
interchangeable
87550Interchangeable
interchangeable cross-reference
interchangeable
BH8502Interchangeable
interchangeable cross-reference
interchangeable
430565Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 60303980?
60303980 is a BEARING,SLEEVE.
What parts can replace 60303980?
There are 4 known substitutes for 60303980: 522250, 87550, BH8502 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 60303980?
60303980 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-296-7732. 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