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NKS 55 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

NKS 55: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include bore_diameter: 2.1654 INCHES MINIMUM AND 2.1673 INCHES MAXIMUM IN, outside_diameter: 2.80 INCHES NOMINAL IN, end_item_identification: 4210-01-622-0440, rolling_element_diameter: 0.20 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: BEARING,NEEDLE 55MMX72MMX22MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-660-6419, 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
NKS 55
NSN: 3110-01-660-6419
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 0AJV0 — SCHAEFFLER GROUP USA INC (USA)
SPECIFICATIONS
bore_diameter2.1654 INCHES MINIMUM AND 2.1673 INCHES MAXIMUM IN
outside_diameter2.80 INCHES NOMINAL IN
end_item_identification4210-01-622-0440
rolling_element_diameter0.20 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBEARING,NEEDLE 55MMX72MMX22MM
NSN3110-01-660-6419
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: NKS 55 · 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
•
ROLLING ELEMENT DIAMETER: 0.20 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.80 INCHES NOMINAL IN
•
BORE DIAMETER: 2.1654 INCHES MINIMUM AND 2.1673 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.20 INCHES NOMINAL IN
OUTSIDE DIAMETER2.80 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING,NEEDLE 55MMX72MMX22MM
END ITEM IDENTIFICATION4210-01-622-0440
BORE DIAMETER2.1654 INCHES MINIMUM AND 2.1673 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 2
3612742Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NKA 55AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NKS 55?
NKS 55 is a BEARING,ROLLER,NEEDLE.
What parts can replace NKS 55?
There are 2 known substitutes for NKS 55: 3612742, NKA 55A. Substitute compatibility should be verified for your specific system.
What is the NSN for NKS 55?
NKS 55 is cataloged in the U.S. Government catalog under NSN 3110-01-660-6419. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.