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Technical Data Sheet
PartsTable / COMPONENT / X552A
X552A ✓ 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 color: WHITE, width: 1.000 INCHES NOMINAL IN, length: 1.000 INCHES NOMINAL IN, material: CELLULOSE FIBER, body_style: STRAIGHT TYPE, body_width: 1.620 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0327, 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
X552A
NSN: 3110-00-100-0327
FSC: 3110
CAGE: 19107 — DART TRUCK CO (USA)
SPECIFICATIONS
colorWHITE
width1.000 INCHES NOMINAL IN
length1.000 INCHES NOMINAL IN
materialCELLULOSE FIBER
body_styleSTRAIGHT TYPE
body_width1.620 INCHES MAXIMUM IN
end_radius1.625 INCHES NOMINAL IN
body_height2.380 INCHES MAXIMUM IN
body_length1.620 INCHES MAXIMUM IN
overall_width0.415 INCHES NOMINAL IN
terminal_typeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
inclosure_typeOPEN
NSN3110-00-100-0327
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: X552A · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
3271-4391Interchangeable
interchangeable cross-reference
interchangeable
4391Interchangeable
interchangeable cross-reference
interchangeable
80263Interchangeable
interchangeable cross-reference
interchangeable
30059Interchangeable
interchangeable cross-reference
interchangeable
H-925Interchangeable
interchangeable cross-reference
interchangeable
SC5950-0008-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X552A?
X552A is a CUP,TAPERED ROLLER BEARING.
What parts can replace X552A?
There are 35 known substitutes for X552A: 3271-4391, 4391, 80263 and 32 more. Substitute compatibility should be verified for your specific system.
Is X552A still available?
X552A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026