PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-8821Bushing,sleeve

The Boeing Company Div Defense · NSN 3120-00-625-6580 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-625-6580 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-625-6580. Primary manufacturer part number: 66-8821.
Features
  • Bushing,sleeve — FSC 3120
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Style Designator: SOLID, EXTERNAL FLANGE ONE END
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Surface Groove Location and Quantity: 1 EXTERNAL
Applications
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-625-6580, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-625-6580
Primary Part Number66-8821
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Surface Groove Location and Quantity1 EXTERNAL
MaterialSTEEL COMP 4140 OVERALL
Flange Outside Diameter1.0400 INCHES NOMINAL IN
Body Outside Diameter0.8766 INCHES MINIMUM AND 0.8769 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Lubricant Accommodation StyleGROOVED CIRCULAR
Body Inside Diameter0.7420 INCHES MINIMUM AND 0.7430 INCHES MAXIMUM IN
Surface Finish63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Flange Width0.0700 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6230-00-116-6129 INTERCHANGEABLE
Floodlight Set,electric
5360-00-291-6170D25000 INTERCHANGEABLE
Spring,helical,compression
Hunt Valve Company, Inc.
1650-00-587-198669-3011 INTERCHANGEABLE
Piston,flutter Dampener
The Boeing Company Div Defense
5340-00-888-7399114S2825-1 INTERCHANGEABLE
Clevis,rod End
The Boeing Company
5342-00-945-5770114S2352-36 INTERCHANGEABLE
Bracket,support Structure
The Boeing Company
6150-01-003-570866082 INTERCHANGEABLE
Lead Assembly,electrical
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
5342-01-214-009765C18524-665 INTERCHANGEABLE
Fairlead Half,tubular
The Boeing Company Div Defense
6515-01-421-5812D25000 INTERCHANGEABLE
Cuff,blood-Fluid Warmer
Dupaco, Inc.
Cross-Reference Index
Part NumberManufacturer
BAC5300 The Boeing Company Div Defense (USA)
D2-5000 The Boeing Company Div Defense (USA)
BAC5009 The Boeing Company Div Defense (USA)
BAC5602 The Boeing Company Div Defense (USA)
BAC5307 The Boeing Company Div Defense (USA)
BAC5004 The Boeing Company Div Defense (USA)
66-8821 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
6230-00-116-6129INTERCHANGEABLE
FLOODLIGHT SET,ELECTRIC
5360-00-291-6170INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
D25000
1650-00-587-1986INTERCHANGEABLE
PISTON,FLUTTER DAMPENER
69-3011
5340-00-888-7399INTERCHANGEABLE
CLEVIS,ROD END
114S2825-1
5342-00-945-5770INTERCHANGEABLE
BRACKET,SUPPORT STRUCTURE
114S2352-36
6150-01-003-5708INTERCHANGEABLE
LEAD ASSEMBLY,ELECTRICAL
66082
5342-01-214-0097INTERCHANGEABLE
FAIRLEAD HALF,TUBULAR
65C18524-665
6515-01-421-5812INTERCHANGEABLE
CUFF,BLOOD-FLUID WARMER
D25000

Frequently Asked Questions

What is NSN 3120-00-625-6580?

NSN 3120-00-625-6580 is a Bushing,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-625-6580?

NSN 3120-00-625-6580 has 7 cross-referenced part numbers: BAC5300 (The Boeing Company Div Defense), D2-5000 (The Boeing Company Div Defense), BAC5009 (The Boeing Company Div Defense), BAC5602 (The Boeing Company Div Defense), BAC5307 (The Boeing Company Div Defense) and 2 more.

What NSN replaces 3120-00-625-6580?

There are 8 known substitutes for 3120-00-625-6580: 6230-00-116-6129, 5360-00-291-6170, 1650-00-587-1986 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-8821?

Key specifications for 66-8821: Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 16 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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