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Worldwide distributor of NSN parts and consumables located in the USA.

Annular Ball Bearing

Model / MPN: 720280-1 | NSN: 3110-01-089-9215
ITAR Registered seal

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.

Product Details
NATO Stock Number
3110-01-089-9215
Sold in multiples of
1 EA
DEMIL
NO
Bore Diameter
Between 0.1248 inches and 0.1250 inches
Overall Outside Diameter
Between 0.3123 inches and 0.3125 inches
Outer Ring Width
Between 0.1084 inches and 0.1094 inches
Inner Ring Width
Between 0.1396 inches and 0.1406 inches
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Load Direction
Radial
Bore Shape
Straight
Internal Clearance
0.0001 inches radial and 0.0003 inches radial
Standard Tolerance Designation
Abec no.7
Material
Steel comp 440c ball
Material
Steel comp 440c inner ring
Material
Steel comp 440c outer ring
Material
Steel comp 440c retainer
Material Specification
Aisi 440c assn standard all material responses ball
Material Specification
Aisi 440c assn standard all material responses inner ring
Material Specification
Aisi 440c assn standard all material responses outer ring
Material Specification
Aisi 440c assn standard all material responses retainer
Style Designator
Non-loading groove, non-separable
Test Data Document
73030-720280-1 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
720280 Series Parts

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720280-1 Cross Reference
  • SR2-5EEK13
  • SR2-5EEK13
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