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Technical Data Sheet
PartsTable / COMPONENT / 640688-5
640688-5 ✓ 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 FILTER ASSEMBLY,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.3750 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.1720 INCHES NOMINAL IN, body_outside_diameter: 0.3120 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 3120-00-766-8161, 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
640688-5
NSN: 3120-00-766-8161
FSC: 3120
CAGE: 33409 — A. O. SMITH CORPORATION DBA A O SMITH CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.3750 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.1720 INCHES NOMINAL IN
body_outside_diameter0.3120 INCHES NOMINAL IN
NSN3120-00-766-8161
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 640688-5 · 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
•
BODY INSIDE DIAMETER: 0.1720 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY OUTSIDE DIAMETER: 0.3120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER0.1720 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER0.3120 INCHES NOMINAL IN
OVERALL LENGTH0.3750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
B35-3Interchangeable
interchangeable cross-reference
interchangeable
800063Interchangeable
interchangeable cross-reference
interchangeable
714005-109Interchangeable
interchangeable cross-reference
interchangeable
500022A-11Interchangeable
interchangeable cross-reference
interchangeable
79C0163-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 640688-5?
640688-5 is a FILTER ASSEMBLY,ELECTRICAL.
What parts can replace 640688-5?
There are 5 known substitutes for 640688-5: B35-3, 800063, 714005-109 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 640688-5?
640688-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-766-8161. 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