A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5915-01-130-8735
NSN 5855-01-413-8962
NSN 5960-01-573-6483
NSN 6645-01-265-2746
NSN 6135-01-202-8113
NSN 6645-00-300-0401
NSN 6620-00-245-6164
NSN 7035-01-380-6538
NSN 5855-01-480-6386
NSN 6320-01-376-2778
NSN 5950-01-472-3870
NSN 6145-01-020-7603