PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 550-056
550-056 ✓ 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

IBM PCI-X DUAL CHANNEL U320 SCSI ADAPTER. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, bore_shape: STRAIGHT, body_height: 0.770 INCHES MAXIMUM IN, body_length: 1.200 INCHES NOMINAL IN, bore_diameter: 45.00 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6726, 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
550-056
NSN: 3110-00-155-6726
FSC: 3110
CAGE: 95019 — DANA CORP SPICER TRANSMISSION DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
bore_shapeSTRAIGHT
body_height0.770 INCHES MAXIMUM IN
body_length1.200 INCHES NOMINAL IN
bore_diameter45.00 MILLIMETERS NOMINAL MM
overall_width1.330 INCHES NOMINAL IN
terminal_typeWIRE LEAD
load_directionRADIAL
overall_height0.770 INCHES MAXIMUM IN
overall_length2.100 INCHES NOMINAL IN
surface_finishGROUND
NSN3110-00-155-6726
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 550-056 · 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
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
FEATURES PROVIDED: SNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OUTER RING
MATERIALSTEEL BALL
MATERIALSTEEL INNER RING
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
FEATURES PROVIDEDSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL SHIELD
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
OVERALL WIDTH25.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
5702Interchangeable
IBM PCI-X Dual Channel U320 Scsi Adapter
interchangeable
S702Interchangeable
interchangeable cross-reference
interchangeable
663193Interchangeable
interchangeable cross-reference
interchangeable
149972Interchangeable
interchangeable cross-reference
interchangeable
3012926Interchangeable
interchangeable cross-reference
interchangeable
BM76878Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 550-056?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 550-056?
550-056 is a IBM PCI-X DUAL CHANNEL U320 SCSI ADAPTER.
What parts can replace 550-056?
There are 27 known substitutes for 550-056: 5702, S702, 663193 and 24 more. Substitute compatibility should be verified for your specific system.
Is 550-056 still available?
550-056 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 550-056

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026