Model: 21638

Bearing Ball

Properties:

Rolling Element Diameter
0.1250 inches
Standard Tolerance Designation
Afbma standard tolerance for balls, grade 50
Material
Steel
Style Designator
Ball
NSN
3110-00-100-6173
Part Number
21638
Description
Ball,bearing
CAGE
81579

A homogenous spherical body, a series of which provides the rolling elements in a bearing, ball (as modified). The item is designed primarily to alleviate friction. It may have other usages such as the checking component in a ball-type check valve. Excludes ball, check; ball, valve, ported.

Part 21638 NSN 3110-00-100-6173

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00036
FIIG:
A044A0
Concept No.:
App. Key:
U
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: 8482105068
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Ball bearings, nesoi

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