A cylindrically-shaped headed item, having circular or longitudinal groove(s).
NSN 2925-01-370-6898
NSN 5950-01-151-5100
NSN 5985-01-025-6051
NSN 5935-01-118-1342
NSN 5930-01-068-3641
NSN 6320-01-454-1965
NSN 2925-01-067-0123
NSN 5905-01-003-9660
NSN 6110-00-126-8402
NSN 5960-01-575-7818
NSN 5895-01-396-3979
NSN 6685-01-599-8468