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 6150-00-726-6885
NSN 5935-01-167-0095
NSN 6320-01-181-9474
NSN 5999-01-448-9520
NSN 5965-00-735-9315
NSN 6105-01-174-0189
NSN 5950-01-205-0178
NSN 6645-01-252-8870
NSN 6320-01-302-5157
NSN 6220-01-518-6390
NSN 6105-01-528-8027
NSN 5925-01-237-2501