Type:

This procurement specification covers aircraft quality retaining rings of the spiral wound type with uniform rectangular cross-sections and made from a corrosion resistant austenitic iron base alloy of the type identified under the Unified Numbering System as UNS S30200, and of spring temper condition.

Classification:

Retaining rings shall conform to one of the following types and classes:

a. Type I - External Ring, Class 1, Medium Duty

b. Type I - External Ring, Class 2, Heavy Duty

c. Type II - Internal Ring, Class 1, Medium Duty

d. Type II - Internal Ring, Class 2, Heavy Duty

Application:

Intended for use on aerospace propulsion systems for retaining parts on shafts and in housing bores where extended temperature use is not greater than 400 °F.

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