PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55490Plate,retaining,bearing

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 3110-00-787-3881 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-787-3881 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-787-3881. Primary manufacturer part number: 55490.
Features
  • Plate,retaining,bearing — FSC 3110
  • Surface Treatment: ANODIZE OVERALL
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Width: 1.970 INCHES NOMINAL IN
  • Length: 2.094 INCHES NOMINAL IN
  • Mounting Hole Diameter: 2.219 INCHES NOMINAL IN
  • Mounting Hole Type: ROUND, UNTHREADED
  • Bolt Circle Hole Quantity: 4
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-787-3881, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN3110-00-787-3881
Primary Part Number55490
Item NamePlate,retaining,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
Surface TreatmentANODIZE OVERALL
MaterialALUMINUM ALLOY 6061 OVERALL
Width1.970 INCHES NOMINAL IN
Length2.094 INCHES NOMINAL IN
Mounting Hole Diameter2.219 INCHES NOMINAL IN
Mounting Hole TypeROUND, UNTHREADED
Bolt Circle Hole Quantity4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
9905-00-685-439255490 INTERCHANGEABLE
Plate,designation
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4720-00-829-5410801-10 INTERCHANGEABLE
Hose,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
2010-01-671-910112609610 INTERCHANGEABLE
Engine Control Unit
Banks Technologies
Cross-Reference Index
Part NumberManufacturer
55490 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
55490 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
9905-00-685-4392INTERCHANGEABLE
PLATE,DESIGNATION
55490
4720-00-829-5410INTERCHANGEABLE
HOSE,NONMETALLIC
801-10
2010-01-671-9101INTERCHANGEABLE
ENGINE CONTROL UNIT
12609610

Frequently Asked Questions

What is NSN 3110-00-787-3881?

NSN 3110-00-787-3881 is a Plate,retaining,bearing, 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 3110-00-787-3881?

NSN 3110-00-787-3881 has 2 cross-referenced part numbers: 55490 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), 55490 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 3110-00-787-3881?

There are 3 known substitutes for 3110-00-787-3881: 9905-00-685-4392, 4720-00-829-5410, 2010-01-671-9101. Verify interchangeability with system specifications before substitution.

What are the specifications of 55490?

Key specifications for 55490: Surface Treatment: ANODIZE OVERALL; Material: ALUMINUM ALLOY 6061 OVERALL; Width: 1.970 INCHES NOMINAL IN; Length: 2.094 INCHES NOMINAL IN. 7 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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