PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 657D249-001
657D249-001 ✓ 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 phase: THREE, material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, control_type: REMOTE, exterior_color: BLACK, overall_length: 2.513 INCHES NOMINAL 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 3120-00-472-4723, 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
657D249-001
NSN: 3120-00-472-4723
FSC: 3120
CAGE: 07332 — WAUKESHA BEARINGS CORPORATION (USA)
SPECIFICATIONS
phaseTHREE
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
control_typeREMOTE
coil_quantity8
exterior_colorBLACK
overall_length2.513 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
inside_diameter0.296 INCHES NOMINAL IN
actuation_methodMAGNETIC
actuator_voltage115.0 AC
frequency_rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
NSN3120-00-472-4723
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 657D249-001 · 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 13
269NTA-6-8Interchangeable
interchangeable cross-reference
interchangeable
4770001439282Interchangeable
interchangeable cross-reference
interchangeable
1469X6X8Interchangeable
interchangeable cross-reference
interchangeable
PS1-30-5-PC42Interchangeable
interchangeable cross-reference
interchangeable
118412Interchangeable
interchangeable cross-reference
interchangeable
1866-42Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 657D249-001?
657D249-001 is a BEARING,SLEEVE.
What parts can replace 657D249-001?
There are 13 known substitutes for 657D249-001: 269NTA-6-8, 4770001439282, 1469X6X8 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 657D249-001?
657D249-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-472-4723. 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