Model: A891

Annular Ball Bearing

Properties:

Overall Width
Between 0.0927 inches and 0.0937 inches
Bore Diameter
Between 0.1248 inches and 0.1250 inches
Overall Outside Diameter
Between 0.2498 inches and 0.2500 inches
Lubrication Material
Lubricating oil
Surface Finish
Ground
Retainer Fabrication Method
Stamped
Shield Quantity
2
Load Direction
Radial
Bore Shape
Straight
Internal Clearance
0.0002 inches radial and 0.0005 inches radial
Standard Tolerance Designation
Abec no. 7p
Functional Description
Miniature and instrument appl
Lubrication Material Specification
Mil-l-6085 military specification single material response
Material
Steel comp 430 retainer
Material
Steel comp 440c ball
Material
Steel comp 440c inner ring
Material
Steel comp 440c outer ring
Material
Steel comp 410 shield
Material Specification
Aisi assn standard all material responses
Style Designator
Non-loading groove, non-separable
NSN
3110-01-226-4980
Part Number
A891
Description
Bearing,ball,annular
CAGE
40920

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 A891 NSN 3110-01-226-4980

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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