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 6150-00-291-8319
NSN 5935-01-033-0057
NSN 5965-01-030-7253
NSN 6610-01-461-1644
NSN 5925-00-901-1652
NSN 6110-01-173-4004
NSN 7035-00-991-6877
NSN 5996-00-852-8329
NSN 5965-01-114-9086
NSN 6645-00-405-1077
NSN 5950-01-318-3351
NSN 6105-00-867-0176