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 6240-01-195-8696
NSN 5999-01-044-6250
NSN 5930-01-425-8617
NSN 6685-01-453-0460
NSN 5960-01-079-0660
NSN 6645-01-592-7563
NSN 4140-00-824-4521
NSN 6645-01-476-6082
NSN 5910-01-354-4686
NSN 5835-01-202-9673
NSN 6220-01-216-0678
NSN 5998-01-170-3553