A rigid item varied in size and shape. It is normally located on the bottom of a valve. It must have drilled and/or tapped holes for mounting purposes.
NSN 5930-00-020-0300
NSN 5960-00-976-3262
NSN 6650-01-267-6522
NSN 6105-01-376-4383
NSN 6135-01-156-4627
NSN 6645-01-041-3533
NSN 5990-01-170-0077
NSN 5935-00-351-9775
NSN 5950-01-042-2436
NSN 6240-00-994-4056
NSN 6610-01-328-3400
NSN 5996-00-222-6049