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 6610-01-534-8433
NSN 6130-01-610-7198
NSN 5915-01-242-8744
NSN 5950-00-275-4777
NSN 6240-00-152-6289
NSN 6645-01-141-7016
NSN 5985-01-468-0709
NSN 6105-01-138-8673
NSN 5915-00-122-4849
NSN 6220-01-158-5956
NSN 6105-01-067-9320
NSN 6650-00-448-8290