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Technical Data Sheet
PartsTable / COMPONENT / 240302
240302 ✓ 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 ROCKER ARM,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: ACFT ENG,RECIPROCATING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-499-3278, 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
240302
NSN: 3120-00-499-3278
FSC: 3120
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
end_item_identificationACFT ENG,RECIPROCATING
NSN3120-00-499-3278
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 240302 · 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
KEY FEATURES
•
CORNER SHAPE: CHAMFERED INSIDE RIGHT CORNER
•
HOLE DIAMETER: 0.5000 INCHES NOMINAL FIRST IN
•
STYLE DESIGNATOR: SEGMENTED
•
SLOT WIDTH: 0.5312 INCHES NOMINAL FIRST IN
•
SLOT LENGTH: 0.3125 INCHES NOMINAL FIRST IN
•
SPHERICAL BODY DIAMETER: 3.6220 INCHES MINIMUM AND 3.6270 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.4910 INCHES MINIMUM AND 1.5010 INCHES MAXIMUM IN
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
HOLE DIAMETER0.5000 INCHES NOMINAL FIRST IN
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
STYLE DESIGNATORSEGMENTED
SLOT WIDTH0.5312 INCHES NOMINAL FIRST IN
SLOT LENGTH0.3125 INCHES NOMINAL FIRST IN
SPHERICAL BODY DIAMETER3.6220 INCHES MINIMUM AND 3.6270 INCHES MAXIMUM IN
BODY INSIDE DIAMETER1.8160 INCHES MINIMUM AND 1.8170 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
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AN931C9-13Interchangeable
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532604-1Interchangeable
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LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 240302?
240302 is a ROCKER ARM,ENGINE POPPET VALVE.
What parts can replace 240302?
There are 19 known substitutes for 240302: 2563, BACG10AG501, 2763 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 240302?
240302 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-499-3278. 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