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 6610-01-068-7974
NSN 6685-00-392-0940
NSN 6150-01-407-6596
NSN 6145-01-435-3202
NSN 5920-01-039-5393
NSN 5905-01-442-7682
NSN 5985-01-113-6753
NSN 5930-00-258-9754
NSN 5935-01-168-8183
NSN 6320-01-607-2978
NSN 6110-01-138-7447
NSN 5996-01-540-7352