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 5925-01-421-3154
NSN 6105-01-041-8698
NSN 5945-00-081-1338
NSN 6650-01-431-9625
NSN 6105-01-035-7197
NSN 2925-00-304-1997
NSN 6240-01-345-3128
NSN 6220-01-213-6154
NSN 6650-01-422-3395
NSN 7035-01-546-5490
NSN 6645-01-577-5891
NSN 5855-01-348-6690