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 5950-00-444-4852
NSN 6610-01-564-4084
NSN 6685-00-702-3074
NSN 6610-01-417-3011
NSN 6650-01-421-3566
NSN 6135-01-307-6006
NSN 5905-00-281-2329
NSN 6130-01-625-0748
NSN 5996-00-982-5301
NSN 6220-01-602-2398
NSN 5910-01-258-3353
NSN 5985-00-515-2184