Model: 521

Annular Ball Bearing

Properties:

Overall Width
1.5625 inches
Bore Diameter
2.7559 inches
Overall Outside Diameter
4.9213 inches
Surface Finish
Ground
Load Direction
Angular
Bore Shape
Straight
Material
Steel
Style Designator
28a non-loading groove, non-separable
Style Designator
Non-loading groove, non-separable
NSN
3110-00-126-9363
Part Number
521
Description
Bearing,ball,annular
CAGE
43334

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 521 NSN 3110-00-126-9363

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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