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 5960-00-615-4732
NSN 2925-01-357-2512
NSN 6240-00-759-7404
NSN 5985-01-229-7327
NSN 6620-01-456-0529
NSN 2925-01-206-5232
NSN 6135-00-628-1142
NSN 6620-01-316-5487
NSN 5910-00-174-3623
NSN 5920-01-516-0467
NSN 4140-00-961-8005
NSN 6150-01-149-5833