External Retaining Ring
PO-31ST PA 5/16" Dia .042"Thk Black Phosphate C/S Poodle Style External Retaining Ring
Fastenal Part No. (SKU)
Manufacturer Part No.
This is an Expanded Catalog Item
Wholesale: $11.47 / package of 100
Online Price: $8.03 / package of 100
Unit Price: $0.0803 / each
Product Attributes
Finish Phosphate
Free Inside Diameter 0.250"
Groove Depth 0.020"
Groove Diameter 0.272"
Groove Width 0.046"
Material Steel
Ring Number 31
Section Width Maximum 0.074"
Shaft Diameter 5/16"
Specification ASME B18.27.1
Style Poodle
Thickness 0.042"
Type External Retaining Ring
Product Weight 0.15
UOM package of 100
External Rings fit into the groove of a shaft. The portion of the ring that protrudes from the groove holds the assembly in place.
  • Made in USA

Radially assembled, external poodle style. Features wide ears which offer extra retention surface against the retained part.
Supply Chain
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    Not in Stock. Contact your branch for purchasing options. 1-877-507-7555