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Technical Data Sheet
PartsTable / COMPONENT / 550204
550204 ✓ 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

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include width: 2.0 INCHES NOMINAL IN, length: 109.0 INCHES MAXIMUM IN, end_type: BOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED, fastener_type: HOOK LOCATION NOT OTHERWISE SPECIFIED, surface_treatment: DICHROMATE AND ZINC BUCKLE, loop_style_designator: DELTA. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0298, 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
550204
NSN: 3110-00-100-0298
FSC: 3110
CAGE: 95019 — DANA CORP SPICER TRANSMISSION DIV (USA)
SPECIFICATIONS
width2.0 INCHES NOMINAL IN
length109.0 INCHES MAXIMUM IN
end_typeBOTH W/ATTACHMENTS LOCATION NOT OTHERWISE SPECIFIED
fastener_typeHOOK LOCATION NOT OTHERWISE SPECIFIED
hook_quantity2
surface_treatmentDICHROMATE AND ZINC BUCKLE
loop_style_designatorDELTA
ring_fastening_methodSEWED
buckle_style_designatorRATCHET
end_item_identification3805-01-553-4073
end_clip_style_designatorEND HOOK
part_name_assigned_by_controlling_agencySTRAP, RETAINING
NSN3110-00-100-0298
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550204 · 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
•
BACKFACE CORNER RADIUS: 0.0625 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.8125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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)
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
OUTSIDE DIAMETER3.8125 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.7500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
42366Interchangeable
interchangeable cross-reference
interchangeable
F910Interchangeable
interchangeable cross-reference
interchangeable
94289Interchangeable
interchangeable cross-reference
interchangeable
372AInterchangeable
interchangeable cross-reference
interchangeable
2557Interchangeable
interchangeable cross-reference
interchangeable
CPA2400A001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 550204?
550204 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 550204?
There are 30 known substitutes for 550204: 42366, F910, 94289 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550204?
550204 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0298. 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