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 7035-01-085-5955
NSN 5960-01-050-6440
NSN 5985-00-954-0436
NSN 6685-01-216-4146
NSN 5915-01-151-7614
NSN 5998-01-495-9301
NSN 2925-00-474-4990
NSN 5930-01-611-0303
NSN 6650-01-069-8211
NSN 6685-01-228-0175
NSN 6145-00-915-4179
NSN 6150-00-012-2715