Model: 6639-1

Annular Ball Bearing

Special Features:

Noise tested and selected for smooth and quiet runninng qualities

Properties:

Overall Width
0.2812 inches
Bore Diameter
0.3750 inches
Overall Outside Diameter
0.8750 inches
Lubrication Material
Grease
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Shield Quantity
2
Load Direction
Radial
Bore Shape
Straight
Internal Fit-up Designation
Loose
Standard Tolerance Designation
Abec no.1
Lubrication Material
Grease
Lubrication Material Specification
Mil-g-81322 military specification single material response
Material
Stainless steel
Style Designator
Non-loading groove, non-separable
NSN
3110-00-446-1721
Part Number
6639-1
Description
Bearing,ball,annular
CAGE
52676

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part 6639-1 NSN 3110-00-446-1721

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00014
FIIG:
A044A0
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8482105028
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Angular contact ball bearings, nesoi

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