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 5950-01-457-6106
NSN 6620-01-585-3982
NSN 6685-01-026-9934
NSN 6150-01-595-4486
NSN 6645-01-108-3457
NSN 6220-01-438-6275
NSN 7035-00-076-4097
NSN 5920-00-694-0483
NSN 5965-00-089-7347
NSN 5998-01-238-8710
NSN 6645-00-975-6941
NSN 6105-00-248-9112