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 5990-01-054-4255
NSN 5990-00-630-6154
NSN 5925-00-186-0765
NSN 5910-01-531-5980
NSN 5835-01-059-5535
NSN 6220-01-418-2823
NSN 6320-00-106-7259
NSN 5996-01-015-9539
NSN 5990-01-263-9364
NSN 2925-01-300-2897
NSN 6645-00-369-4410
NSN 6650-00-193-7358