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 6145-01-650-7283
NSN 6620-01-542-5569
NSN 7035-01-586-9147
NSN 5905-01-401-5325
NSN 2925-01-603-6379
NSN 5925-00-019-9047
NSN 5960-01-579-9493
NSN 5935-01-536-4699
NSN 6130-01-017-9600
NSN 6645-01-221-3120
NSN 6620-01-078-6372
NSN 5950-01-153-8267