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 5835-01-520-4479
NSN 5999-01-441-8489
NSN 6110-00-707-9869
NSN 5999-01-562-8757
NSN 5998-00-678-8778
NSN 2925-00-833-9466
NSN 5996-01-573-7953
NSN 4140-00-214-0554
NSN 6110-00-437-3400
NSN 5910-01-296-5331
NSN 6105-00-456-6328
NSN 5985-00-671-5325