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 5835-01-632-6627
NSN 5905-01-607-6163
NSN 6150-00-283-8035
NSN 6110-01-353-2472
NSN 5990-01-287-9447
NSN 5990-00-964-6422
NSN 6620-01-440-9810
NSN 5920-01-419-5271
NSN 5965-01-312-1630
NSN 5965-01-188-7267
NSN 5930-01-204-6638
NSN 6130-01-228-5337