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 5920-01-329-6224
NSN 6620-00-488-0626
NSN 6105-01-011-0697
NSN 6110-00-237-4862
NSN 5965-01-231-9125
NSN 5920-00-302-5168
NSN 5855-00-361-0167
NSN 5965-01-042-2001
NSN 6135-00-904-6780
NSN 6130-01-118-4654
NSN 5855-00-256-5562
NSN 6145-01-049-6660