PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66610Bearing,sleeve

Textron Lycoming Inc Williamsport Plant · NSN 3120-00-479-1827 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-479-1827 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-479-1827. Primary manufacturer part number: 66610.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.7410 INCHES MINIMUM AND 0.7415 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material Document and Classification: AMS 4805 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 0.6155 INCHES MINIMUM AND 0.6180 INCHES MAXIMUM IN
  • 1 verified cross-reference
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-479-1827, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Textron Lycoming Inc Williamsport Plant. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3120-00-479-1827
Primary Part Number66610
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTextron Lycoming Inc Williamsport Plant
StatusACTIVE
Body Outside Diameter0.7410 INCHES MINIMUM AND 0.7415 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and ClassificationAMS 4805 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter0.6155 INCHES MINIMUM AND 0.6180 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4720-00-838-7454 INTERCHANGEABLE
Hose,nonmetallic
4720-00-857-1730 INTERCHANGEABLE
Hose,nonmetallic
5330-01-259-637166610 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division
Cross-Reference Index
Part NumberManufacturer
66610 PRIMARY Textron Lycoming Inc Williamsport Plant (USA)
Related Parts
4720-00-838-7454INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-857-1730INTERCHANGEABLE
HOSE,NONMETALLIC
5330-01-259-6371INTERCHANGEABLE
GASKET
66610

Frequently Asked Questions

What is NSN 3120-00-479-1827?

NSN 3120-00-479-1827 is a Bearing,sleeve, manufactured by Textron Lycoming Inc Williamsport Plant, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-479-1827?

NSN 3120-00-479-1827 has 1 cross-referenced part number: 66610 (Textron Lycoming Inc Williamsport Plant).

What NSN replaces 3120-00-479-1827?

There are 3 known substitutes for 3120-00-479-1827: 4720-00-838-7454, 4720-00-857-1730, 5330-01-259-6371. Verify interchangeability with system specifications before substitution.

What are the specifications of 66610?

Key specifications for 66610: Body Outside Diameter: 0.7410 INCHES MINIMUM AND 0.7415 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: AMS 4805 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Corner Shape: SQUARE ALL CORNERS. 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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