PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6303-2Ball,bearing

Westinghouse Electric Corp Power Generation-Generator Div · NSN 3110-00-198-1050 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-198-1050 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-198-1050. Primary manufacturer part number: 6303-2.
Features
  • Ball,bearing — FSC 3110
  • 50 verified cross-references
  • Primary manufacturer: Westinghouse Electric Corp Power Generation-Generator Div
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Ball,bearing, cataloged under National Stock Number 3110-00-198-1050, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Westinghouse Electric Corp Power Generation-Generator Div. This item has 50 commercial cross-references from 39 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameBall,bearing
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersWestinghouse Electric Corp Power Generation-Generator Div (CAGE 65054); Skf Usa Inc. (CAGE 52676); Hydro-Aire Aerospace Corp (CAGE 81982); Triumph Engine Control Systems Llc (CAGE 11599); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)
Technical Specifications
ParameterValue
NSN3110-00-198-1050
Primary Part Number6303-2
Item NameBall,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerWestinghouse Electric Corp Power Generation-Generator Div
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-018-11345B536 INTERCHANGEABLE
Contact Assembly,electrical
W.w. Grainger, Inc. Div Government Sales Division
4730-00-032-866814745 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Meggitt North Hollywood Inc
5977-00-090-00251549 INTERCHANGEABLE
Contact Set,collector Ring
Cornell-Carr Co., Inc.
2910-00-136-87313007036 INTERCHANGEABLE
Tank,fuel,engine
Tankcraft Corp
5995-00-139-44671549 INTERCHANGEABLE
Lead,electrical
Unity Manufacturing Co
5905-00-173-7936 INTERCHANGEABLE
Resistor,fixed,wire Wound
5910-00-186-1587154-9 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Viking Technologies, Ltd.
4730-00-245-0413 INTERCHANGEABLE
Fitting,lubrication
3455-00-254-8467 INTERCHANGEABLE
Cutter,milling,convex
5133-00-262-2180 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
6303-2 Westinghouse Electric Corp Power Generation-Generator Div (USA)
1-4ST4G50 Skf Usa Inc. (USA)
40401-8 Hydro-Aire Aerospace Corp (USA)
6871 Triumph Engine Control Systems Llc (USA)
181731 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
SSN613-522-2429 Portsmouth Naval Shipyard (USA)
2780-55048-E11 Teikoku Usa Inc. Div Chempump, a Division of Teikoku Usa Inc (USA)
MS19060-4814 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
31510 Valcor Engineering Corporation (USA)
901005004 Meggitt Troy Inc (USA)
R-6181-AT PIECE Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
PT4-8 W. M. Berg, Inc. (USA)
31510 Kidde-Fenwal, Llc (USA)
25501-4C Barksdale, Inc (USA)
SS580-522-17005 Naval Sea Systems Command (USA)
G441-8 Northrop Grumman Systems Corporation (USA)
1549 Hydronic Corp (USA)
6288B Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
P398 Weldon Tool Co the (USA)
1-4INSSTBALL Hoover Group Inc Ball and Roller Div (USA)
Related Parts
5999-00-018-1134INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
5B536
4730-00-032-8668INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
14745
5977-00-090-0025INTERCHANGEABLE
CONTACT SET,COLLECTOR RING
1549
2910-00-136-8731INTERCHANGEABLE
TANK,FUEL,ENGINE
3007036
5995-00-139-4467INTERCHANGEABLE
LEAD,ELECTRICAL
1549
5905-00-173-7936INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5910-00-186-1587INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
154-9
4730-00-245-0413INTERCHANGEABLE
FITTING,LUBRICATION
3455-00-254-8467INTERCHANGEABLE
CUTTER,MILLING,CONVEX
5133-00-262-2180INTERCHANGEABLE
DRILL,TWIST
5136-00-289-9607INTERCHANGEABLE
TAP,THREAD CUTTING
1549
1650-00-332-6802INTERCHANGEABLE
RETAINER,DRIVE COUPLER

Frequently Asked Questions

What is NSN 3110-00-198-1050?

NSN 3110-00-198-1050 is a Ball,bearing, manufactured by Westinghouse Electric Corp Power Generation-Generator Div, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-198-1050?

NSN 3110-00-198-1050 has 50 cross-referenced part numbers: 6303-2 (Westinghouse Electric Corp Power Generation-Generator Div), 1-4ST4G50 (Skf Usa Inc.), 40401-8 (Hydro-Aire Aerospace Corp), 6871 (Triumph Engine Control Systems Llc), 181731 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 45 more.

What NSN replaces 3110-00-198-1050?

There are 12 known substitutes for 3110-00-198-1050: 5999-00-018-1134, 4730-00-032-8668, 5977-00-090-0025 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 3110-00-198-1050 still in active supply?

NSN 3110-00-198-1050 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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