PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55443Cup,tapered Roller Bearing

Rbc Bearings Incorporated Div West Trenton Division · NSN 3110-00-100-0601 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0601 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0601. Primary manufacturer part number: 55443.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Outside Diameter: 4.4375 INCHES NOMINAL IN
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Standard Tolerance Designation: AFBMA CLASS 2
  • 42 verified cross-references
  • Primary manufacturer: Rbc Bearings Incorporated Div West Trenton Division
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0601, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rbc Bearings Incorporated Div West Trenton Division. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 42 commercial cross-references from 28 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-0601
Primary Part Number55443
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerRbc Bearings Incorporated Div West Trenton Division
StatusCANCELLED
Outside Diameter4.4375 INCHES NOMINAL IN
Backface Corner Radius0.1250 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Standard Tolerance DesignationAFBMA CLASS 2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1240-00-025-0243415256PC2 INTERCHANGEABLE
Holder,optical Element
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4310-00-212-9805 INTERCHANGEABLE
Connecting Rod,piston
2010-00-213-0763CVB41S4302-2PC16 INTERCHANGEABLE
Bearing,stave Shaped
Naval Ship Systems Command
5310-00-220-666816T2973 INTERCHANGEABLE
Nut,plain,hexagon
Chief of Engineers Dept of Army
6685-00-242-2202ASTM 17F INTERCHANGEABLE
Thermometer,self-Indicating
American Society for Testing and Materials Dba Astm International
5365-00-287-152714867 INTERCHANGEABLE
Plug,machine Thread
Brinkley Technology Group Llc Dba Hercules Manufacturing
5330-00-361-276380038 INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
3040-00-409-6463 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
5360-00-467-6902 INTERCHANGEABLE
Spring
5999-00-493-6000417036-6 INTERCHANGEABLE
Wire Mesh,knitted
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
4-113-59 Flxible Co the (USA)
55443 Tyson Bearing Co Div Skf Industries Inc (USA)
3024601-1 New Holland Construction (USA)
E050078 Bros Inc
55443 PRIMARY Rbc Bearings Incorporated Div West Trenton Division (USA)
370631C1 PRIMARY Dressta North America Ltd (USA)
70805 Komatsu America Corporation (USA)
667278 Clark Equipment Co (USA)
667278 Dana Off Highway Products, Llc (USA)
890175H1 Komatsu American Intl Co (USA)
55443 Kersey / American Lafrance a Div of Figgie International Inc (USA)
C4 American Standard Inc Westinghouse Air Brake Co Div (USA)
1191868 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
127028H1 Komatsu American Intl Co (USA)
55443 PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
370631C1 Komatsu American Intl Co (USA)
611770 New Holland Construction (USA)
11167 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
E050559 Bros Inc
55443 PRIMARY The Timken Corporation (USA)
Related Parts
1240-00-025-0243INTERCHANGEABLE
HOLDER,OPTICAL ELEMENT
415256PC2
4310-00-212-9805INTERCHANGEABLE
CONNECTING ROD,PISTON
2010-00-213-0763INTERCHANGEABLE
BEARING,STAVE SHAPED
CVB41S4302-2PC16
5310-00-220-6668INTERCHANGEABLE
NUT,PLAIN,HEXAGON
16T2973
6685-00-242-2202INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
ASTM 17F
5365-00-287-1527INTERCHANGEABLE
PLUG,MACHINE THREAD
14867
5330-00-361-2763INTERCHANGEABLE
GASKET
80038
3040-00-409-6463INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
5360-00-467-6902INTERCHANGEABLE
SPRING
5999-00-493-6000INTERCHANGEABLE
WIRE MESH,KNITTED
417036-6
3110-00-554-5840INTERCHANGEABLE
BEARING,BALL,ANNULAR
225305-6
5331-00-582-2855INTERCHANGEABLE
O-RING
2-113 N304-75

Frequently Asked Questions

What is NSN 3110-00-100-0601?

NSN 3110-00-100-0601 is a Cup,tapered Roller Bearing, manufactured by Rbc Bearings Incorporated Div West Trenton Division, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-100-0601?

NSN 3110-00-100-0601 has 42 cross-referenced part numbers: 4-113-59 (Flxible Co the), 55443 (Tyson Bearing Co Div Skf Industries Inc), 3024601-1 (New Holland Construction), E050078 (Bros Inc), 55443 (Rbc Bearings Incorporated Div West Trenton Division) and 37 more.

What NSN replaces 3110-00-100-0601?

There are 12 known substitutes for 3110-00-100-0601: 1240-00-025-0243, 4310-00-212-9805, 2010-00-213-0763 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 55443?

Key specifications for 55443: Outside Diameter: 4.4375 INCHES NOMINAL IN; Overall Width: 0.8125 INCHES NOMINAL IN; Backface Corner Radius: 0.1250 INCHES NOMINAL IN; Special Features: STEEP ANGLE. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-0601 still in active supply?

NSN 3110-00-100-0601 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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