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 5960-01-148-6908
NSN 5855-00-779-2854
NSN 6620-00-246-5159
NSN 5905-00-369-1644
NSN 6130-01-555-7492
NSN 6645-00-833-2395
NSN 6610-00-280-0546
NSN 5999-01-564-0224
NSN 5910-01-089-3290
NSN 6135-01-439-6229
NSN 5996-00-199-6972
NSN 5990-01-197-6922