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Technical Data Sheet
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2556-1 — Technical Data Sheet

✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include end_item_source: 06085, end_item_identification: 2350-01-390-4683. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-198-1050, 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
2556-1
NSN: 3110-00-198-1050
FSC: 3110
CAGE: 56570 — JETSTREAM OF HOUSTON, LLP DBA JETSTREAM OF HOUSTON LLP (USA)
SPECIFICATIONS
end_item_source06085
end_item_identification2350-01-390-4683
NSN3110-00-198-1050
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 2556-1 · 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
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
D1500863 PC-8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1549InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D1500857 PC-8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
14745InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
21668InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
NW21668InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2556-1?
2556-1 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 2556-1?
There are 29 known substitutes for 2556-1: D1500863 PC-8, 1549, D1500857 PC-8 and 26 more. Substitute compatibility should be verified for your specific system.
Is 2556-1 still available?
2556-1 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: September 2026