PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66990Bearing,ball,annular

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 3110-00-133-6595 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-133-6595 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-133-6595. Primary manufacturer part number: 66990.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 20.00 MILLIMETERS NOMINAL MM
  • Bore Shape: STRAIGHT
  • Material: STEEL COMP E52100 OVERALL
  • Standard Tolerance Designation: ABEC NO.1
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Surface Finish: GROUND
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-133-6595, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-133-6595
Primary Part Number66990
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Bore Diameter20.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
MaterialSTEEL COMP E52100 OVERALL
Standard Tolerance DesignationABEC NO.1
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
Overall Outside Diameter42.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-144-8813104KS INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5365-01-357-17366397419 SIZE A-004 INTERCHANGEABLE
Shim
Naval Sea Systems Command
6625-01-429-8081 INTERCHANGEABLE
Adapter,test
Cross-Reference Index
Part NumberManufacturer
6004 West Coast Machine Tools Inc (USA)
6004 Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
66990 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
BB-6004 Jet Equipment & Tools Inc (USA)
3L04 General Motors Corp Delco Moraine Ndh Div (USA)
6004 Phoenix, Inc (USA)
6004 Skf Usa Inc. (USA)
A004 West Coast Machine Tools Inc (USA)
66990 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
3110-00-144-8813INTERCHANGEABLE
BEARING,BALL,ANNULAR
104KS
5365-01-357-1736INTERCHANGEABLE
SHIM
6397419 SIZE A-004
6625-01-429-8081INTERCHANGEABLE
ADAPTER,TEST

Frequently Asked Questions

What is NSN 3110-00-133-6595?

NSN 3110-00-133-6595 is a Bearing,ball,annular, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-133-6595?

NSN 3110-00-133-6595 has 9 cross-referenced part numbers: 6004 (West Coast Machine Tools Inc), 6004 (Flowserve Corp Dba Automax Actuators Div Flowserve Us Company), 66990 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), BB-6004 (Jet Equipment & Tools Inc), 3L04 (General Motors Corp Delco Moraine Ndh Div) and 4 more.

What NSN replaces 3110-00-133-6595?

There are 3 known substitutes for 3110-00-133-6595: 3110-00-144-8813, 5365-01-357-1736, 6625-01-429-8081. Verify interchangeability with system specifications before substitution.

What are the specifications of 66990?

Key specifications for 66990: Bore Diameter: 20.00 MILLIMETERS NOMINAL MM; Bore Shape: STRAIGHT; Material: STEEL COMP E52100 OVERALL; Standard Tolerance Designation: ABEC NO.1. 11 total characteristics are documented in the Federal Logistics Information System.

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