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 5905-00-947-5690
NSN 5930-01-163-4939
NSN 5930-00-683-2151
NSN 6105-01-056-5258
NSN 5965-01-220-0529
NSN 5930-01-437-5670
NSN 2925-01-500-0730
NSN 7035-01-572-1045
NSN 6130-00-369-6637
NSN 5996-01-158-9695
NSN 5999-01-526-1753
NSN 5985-00-871-7820