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 7035-01-088-6415
NSN 6645-00-147-9069
NSN 5960-01-391-4701
NSN 5945-01-141-7017
NSN 2925-01-057-6993
NSN 6150-00-828-6024
NSN 6685-00-756-1662
NSN 6150-01-138-7320
NSN 5990-01-004-6343
NSN 5855-01-072-0410
NSN 5945-01-381-8196
NSN 6620-00-410-2638