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: Gaskets,washers & other seals
NSN 6145-00-663-6133
NSN 5999-01-093-0963
NSN 6650-00-647-1085
NSN 2925-01-642-8954
NSN 5998-00-183-6609
NSN 5910-01-271-2140
NSN 5895-01-015-5594
NSN 6145-00-246-9776
NSN 6220-01-250-6450
NSN 5945-00-483-0398
NSN 6145-01-081-6255
NSN 5996-01-014-8857