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 7035-01-025-9312
NSN 5930-01-391-1027
NSN 5855-01-276-0353
NSN 5895-01-580-7598
NSN 6105-00-679-7580
NSN 5910-01-367-2727
NSN 5905-01-338-3123
NSN 5895-00-781-7488
NSN 5950-01-333-8179
NSN 5998-00-064-2144
NSN 6650-01-201-2956
NSN 6145-00-578-7522