These grommets and washers have a telescoping, barrel to barrel setting reinforcing the hole with two entire parts. This type of grommet and washer combination is ideal for thicker gauge textiles and materials. Neck grommet and washers are ideal for dual-feed, high-speed machines since the neck provides the setting machine with something to grab on to so it can be fed down the raceway toward the tools.
Neck washers are commonly used in place of plain washers in grommet machines that feed and set both the grommet and the washer, as the washer’s neck allows it to be guided down a track (aka “the roadway”) of the setting machine.
DIMENSIONS IN INCHES:
Hole Size: 15/32
Flange Diameter: .970
Length Under Flange: .255
Metal Thickness: .020
Inside Diameter: .537
Outside Diameter: .970
Metal Thickness: .020
This part conforms to the following mil spec(s): MILG16491 TYPE III, CLASS 3, SIZE 3 and NASM16491 TYPE III, CLASS 3, SIZE 3