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Technical Data Sheet
PartsTable / COMPONENT / C347-4
C347-4 ✓ 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,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include bore_diameter: 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN, style_designator: WITHOUT INSERT OR LINER, inner_member_width: 1.0950 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN, outer_member_width: 0.8000 INCHES MINIMUM AND 0.8100 INCHES MAXIMUM IN, static_radial_load_rating: 57000 POUNDS LBS, outer_member_outside_diameter: 2.4320 INCHES MINIMUM AND 2.4325 INCHES MAXIMUM 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 3120-00-959-0511, 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
C347-4
NSN: 3120-00-959-0511
FSC: 3120
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
bore_diameter1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
style_designatorWITHOUT INSERT OR LINER
inner_member_width1.0950 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN
outer_member_width0.8000 INCHES MINIMUM AND 0.8100 INCHES MAXIMUM IN
static_radial_load_rating57000 POUNDS LBS
outer_member_outside_diameter2.4320 INCHES MINIMUM AND 2.4325 INCHES MAXIMUM IN
NSN3120-00-959-0511
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: C347-4 · 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
•
STATIC RADIAL LOAD RATING: 57000 POUNDS LBS
•
BORE DIAMETER: 1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
•
OUTER MEMBER OUTSIDE DIAMETER: 2.4320 INCHES MINIMUM AND 2.4325 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.8000 INCHES MINIMUM AND 0.8100 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: WITHOUT INSERT OR LINER
•
INNER MEMBER WIDTH: 1.0950 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STATIC RADIAL LOAD RATING57000 POUNDS LBS
BORE DIAMETER1.4995 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
OUTER MEMBER OUTSIDE DIAMETER2.4320 INCHES MINIMUM AND 2.4325 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.8000 INCHES MINIMUM AND 0.8100 INCHES MAXIMUM IN
STYLE DESIGNATORWITHOUT INSERT OR LINER
INNER MEMBER WIDTH1.0950 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
190122890Interchangeable
interchangeable cross-reference
interchangeable
66372Interchangeable
interchangeable cross-reference
interchangeable
55298Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C347-4?
C347-4 is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace C347-4?
There are 3 known substitutes for C347-4: 190122890, 66372, 55298. Substitute compatibility should be verified for your specific system.
What is the NSN for C347-4?
C347-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-959-0511. 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