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 6130-01-332-6082
NSN 5996-01-425-2503
NSN 5960-00-890-9032
NSN 5910-00-068-5379
NSN 5950-00-907-9549
NSN 5910-01-044-8577
NSN 5960-01-425-1454
NSN 5925-00-738-4654
NSN 5999-01-408-2603
NSN 6685-01-051-3794
NSN 5855-01-224-7975
NSN 6150-01-173-1041