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 6130-00-797-8681
NSN 5925-01-441-9569
NSN 6105-01-196-6377
NSN 6220-01-019-7606
NSN 2925-00-872-4474
NSN 5975-01-106-6018
NSN 6650-00-255-2633
NSN 6685-01-013-3265
NSN 6645-01-007-5295
NSN 4140-01-421-3698
NSN 6685-00-438-8165
NSN 5945-01-237-2592