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 6610-01-376-9199
NSN 5930-01-419-4855
NSN 5915-01-038-6202
NSN 6650-00-527-7451
NSN 5895-00-223-3869
NSN 5910-01-648-0748
NSN 5895-01-241-7626
NSN 5925-01-359-6329
NSN 6650-01-146-5000
NSN 6645-01-042-0467
NSN 6685-01-204-3252
NSN 5855-00-821-7512