An item of various sizes and shapes, rigid, flat and generally smooth. It is normally located between the top of the body and the head. It may include valve ports, and may be issued with gaskets, washers, springs, bolts, disc and the like.
NSN 6685-00-222-2932
NSN 6240-00-456-2578
NSN 6320-01-388-1067
NSN 5975-01-619-5792
NSN 6620-01-043-6424
NSN 7035-01-082-0311
NSN 5930-01-048-5445
NSN 5895-01-626-7705
NSN 6685-00-647-3883
NSN 5905-00-906-9505
NSN 5960-01-609-6565
NSN 6645-00-004-0510