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 5915-01-447-3151
NSN 5965-00-839-0302
NSN 6320-01-090-8296
NSN 5975-00-199-9563
NSN 5996-00-790-4758
NSN 5960-00-018-3477
NSN 5910-00-979-3544
NSN 5910-01-272-2575
NSN 6650-01-396-5352
NSN 5855-01-250-2421
NSN 7035-01-438-2108
NSN 5965-01-537-7731