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 7035-01-023-1008
NSN 5999-01-647-7870
NSN 6320-01-572-6395
NSN 5996-00-932-5301
NSN 6220-00-494-7228
NSN 5905-00-628-0694
NSN 5965-01-295-4426
NSN 6135-00-078-9931
NSN 7035-01-078-6252
NSN 5895-01-440-8294
NSN 5985-00-500-0269
NSN 5975-00-956-3890