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 7035-00-360-2008
NSN 5945-00-675-5923
NSN 6130-01-511-8142
NSN 5999-01-005-0321
NSN 5985-00-070-2601
NSN 5905-01-453-0392
NSN 5925-00-485-2851
NSN 5999-01-168-8788
NSN 6145-01-647-8838
NSN 7035-00-148-2300
NSN 5960-01-163-8905
NSN 6650-01-657-5108