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 5905-00-276-8597
NSN 5998-01-203-2069
NSN 5910-01-600-0102
NSN 5910-01-187-3311
NSN 6685-01-015-5975
NSN 5895-00-902-1415
NSN 5998-01-177-9957
NSN 5965-01-025-5129
NSN 5905-01-032-9536
NSN 5920-01-487-0010
NSN 5975-01-105-0981
NSN 6150-00-222-5302