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657 — PARTS KIT,CONSTANT VELOCITY DRIV

✓ Government record, cited
3M · MRO · MRO_GENERAL
PRODUCT OVERVIEW

657: PARTS KIT,CONSTANT VELOCITY DRIV.

PARTS KIT,CONSTANT VELOCITY DRIV. Key specifications include special_features: MOTOR MOUNT 50-90. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0667, 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
MRO→ MRO_GENERAL→ 657
NSN: 3110-00-100-0667
NIINs: 001000667, 001428719, 001448663, 002017230, 002629953, 002734223, 003599218, 003608491, 003749390, 004924822, 005545719, 008101762, 009015516, 010047831, 010276016, 011044722, 012006004, 012057908, 012760606, 013101803, 014844326, 015744085
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
special_featuresMOTOR MOUNT 50-90
NSN3110-00-100-0667
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 657 · 3M ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
CONE WIDTH: 1.6250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 2.8750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
CONE WIDTH1.6250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER2.8750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
069579Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0069579-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
0069579Same 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 657?
657 is a PARTS KIT,CONSTANT VELOCITY DRIV manufactured by 3M. It is classified as a MRO (MRO_GENERAL).
What parts can replace 657?
There are 3 known substitutes for 657: 069579, 0069579-1, 0069579. Substitute compatibility should be verified for your specific system.
What is the NSN for 657?
657 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0667. 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.