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 5985-00-459-5130
NSN 5925-00-780-8620
NSN 6220-01-567-6477
NSN 5999-01-038-1739
NSN 5965-01-395-6691
NSN 2925-00-288-1394
NSN 6240-01-556-7096
NSN 5998-01-035-0835
NSN 6685-01-226-8141
NSN 6135-01-059-4055
NSN 5925-01-044-0576
NSN 6650-01-445-8790