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CL4649 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

CL4649: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 3.7498 INCHES MINIMUM AND 3.7508 INCHES MAXIMUM IN, housing_length: 1.0312 INCHES NOMINAL IN, flange_thickness: 0.6250 INCHES NOMINAL IN, mounting_hole_type: ROUND, UNTHREADED, bolt_circle_diameter: 4.3125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-384-9387, 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
CL4649
NSN: 3130-00-384-9387
FSC: 3130 — Bearings, Mounted
CAGE: 77873 — ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter3.7498 INCHES MINIMUM AND 3.7508 INCHES MAXIMUM IN
housing_length1.0312 INCHES NOMINAL IN
flange_thickness0.6250 INCHES NOMINAL IN
mounting_hole_typeROUND, UNTHREADED
bolt_circle_diameter4.3125 INCHES NOMINAL IN
mounting_hole_diameter0.2656 INCHES NOMINAL IN
overall_outside_diameter6.3952 INCHES MINIMUM AND 6.4032 INCHES MAXIMUM IN
material_document_and_classificationX-102C FSCM 77873 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN3130-00-384-9387
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: CL4649 · 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
•
FLANGE THICKNESS: 0.6250 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: X-102C FSCM 77873 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
MOUNTING HOLE DIAMETER: 0.2656 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 6.3952 INCHES MINIMUM AND 6.4032 INCHES MAXIMUM IN
•
BOLT CIRCLE DIAMETER: 4.3125 INCHES NOMINAL IN
•
BORE DIAMETER: 3.7498 INCHES MINIMUM AND 3.7508 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.6250 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONX-102C FSCM 77873 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE DIAMETER0.2656 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER6.3952 INCHES MINIMUM AND 6.4032 INCHES MAXIMUM IN
BOLT CIRCLE DIAMETER4.3125 INCHES NOMINAL IN
BORE DIAMETER3.7498 INCHES MINIMUM AND 3.7508 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOUSING LENGTH1.0312 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES 2
55232DAReference document
Same NSN cross-reference
Reference document — Secondary reference
CL4649-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CL4649?
CL4649 is a HOUSING,BEARING UNIT.
What parts can replace CL4649?
There are 2 known substitutes for CL4649: 55232DA, CL4649-1. Substitute compatibility should be verified for your specific system.
What is the NSN for CL4649?
CL4649 is cataloged in the U.S. Government catalog under NSN 3130-00-384-9387. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.