scope:

This specification covers sockets and attachment used with power driven impact wrenches and nut runners.

This Federal specification does not include all types of sockets or attachments as indicated by the title or which are commercially available, but is intended to cover the types generally used for Federal Government requirements.

Sockets and attachments shall be Of the following types, classes, styles, and sizes as specified (see 6.l):

Sockets:

Type I - Sockets.

Class 1 - Hexagon (6-point).

Style A - Regular length.

Style B - Long length.

Class 2 - Double square (8-point).

Style A - Regular length.

Style B - Long length.

Class 3 - Single square (4-point).

Style A - Regular length.

Style B - Long length.

Class 4 - Universal joint, hexagon (6-point).

Class 5 - Tapping screw, hexagon (6-point).

Style A - Regular length.

Style B - Long length.

Sizes - The size of all type I sockets shall be the size of the square drive end and the nominal size of socket as shown in the applicable tables.

Attachments:

Type II - Bars, extension.

Type III - Adaptors.

Type IV - Universal-joint attachment.

Type V - Double male adapter.

Sizes - The size of the attachments shall include the following data as shown in the applicable tables.

Type II - Size of drive end and nominal length.

Type III - Size of male drive end and female drive end.

Type IV - Size of drive end.

Type V - Size of square drive end.