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 5999-00-133-8954
NSN 6110-01-110-4669
NSN 6145-01-411-6454
NSN 5920-01-610-0049
NSN 5965-01-252-7121
NSN 5905-00-398-0778
NSN 6130-00-675-9572
NSN 6220-01-479-5881
NSN 5950-01-512-2430
NSN 6320-01-216-1678
NSN 6220-00-759-8611
NSN 5965-01-492-5695