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 6220-00-985-3465
NSN 5950-01-521-7376
NSN 5965-01-375-4335
NSN 5905-01-170-3397
NSN 5990-00-956-9130
NSN 5965-00-185-9687
NSN 7035-01-174-1029
NSN 6645-01-656-0567
NSN 5925-01-214-5969
NSN 6135-01-201-5858
NSN 4140-00-213-9937
NSN 6110-00-028-6729