AIA NASM10971 PDF

Scope.  This specification covers tubular-shaped spring pins constructed
to resist reduction in pin diameter by means of spring action.

Classification.  Spring pins shall be of the following types, classes
and compositions as specified (see 6.2).

     Types.  Spring pins shall be of the following types:

          Type I  - Slotted
          Type II - Coiled

     Classes.  Type II spring pins shall be of the following classes:

          Class 1  - Heavy duty
          Class 2  - Standard duty
          Class 3  - Light duty

     Compositions.  Spring pins shall be of the following compositions:

          Composition A  - Carbon steel
          Composition B1 - Austenitic corrosion-resisting steel
          Composition B2 - Ferritic and martensitic corrosion-resisting
                            steel
          Composition C  - Beryllium-copper alloy
          Composition D  - Alloy steel