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Technical Data Sheet
PartsTable / COMPONENT / BT664
BT664 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 1.6250 INCHES NOMINAL IN, bore_diameter: 3.3125 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0671, 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
BT664
NSN: 3110-00-100-0671
FSC: 3110
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.6250 INCHES NOMINAL IN
bore_diameter3.3125 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
general_characteristics_item_descriptionBRASS,1.250 IN. OD BY 0.203 IN. THK,0.9631-27 NS 3B THREAD,20 CORRUGATIONS ON THE OD WITH A 0.046 IN. RADIUS,0.046 IN. W OF EACH CORRUGATIONS IN
NSN3110-00-100-0671
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: BT664 · OEM ⚠ 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
•
CONE WIDTH: 1.6250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BORE DIAMETER: 3.3125 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE WIDTH1.6250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
BORE DIAMETER3.3125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
A50224Interchangeable
interchangeable cross-reference
interchangeable
664Interchangeable
interchangeable cross-reference
interchangeable
A50200Interchangeable
interchangeable cross-reference
interchangeable
6610:52Interchangeable
interchangeable cross-reference
interchangeable
A-A-481Interchangeable
interchangeable cross-reference
interchangeable
BT664Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BT664?
BT664 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace BT664?
There are 16 known substitutes for BT664: A50224, 664, A50200 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT664?
BT664 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0671. 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