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Bearing Ball

Model / MPN: 20556-1 | NSN: 3110-00-390-0699
ITAR Registered seal

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.

Product Details
NATO Stock Number
3110-00-390-0699
Sold in multiples of
1 EA
DEMIL
NO
Rolling Element Diameter
0.0469 inches
Standard Tolerance Designation
Afbma standard tolerance for balls, grade 10
Material
Steel comp 440a
Material Specification
Aisi assn standard single material response
Style Designator
Ball
Solicitations
Solicitation Description Qty UOM Close Date
SPE4A516TDW09 Ball, Bearing 639 EA 06/27/2016
SPE4A518T3922 Ball, Bearing 908 EA 10/31/2017
SPE4A518T370W Ball, Bearing 1429 EA 02/14/2018
SPE4A418T2070 Ball, Bearing 1087 EA 04/23/2018
SPE4A419T7397 Ball, Bearing 2726 EA 06/07/2019
SPE4A419T9792 Ball, Bearing 1000 EA 09/16/2019

Pricing and Availability

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20556-1 Cross Reference
  • 143931
  • F2215-08
  • 143931
  • MS19060-1003
  • 20556-1
  • MS19060-1003
  • 143931