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 5835-00-785-7921
NSN 6220-01-067-8142
NSN 5855-00-106-1640
NSN 5975-00-997-4766
NSN 6130-01-205-6294
NSN 5945-01-037-7058
NSN 5905-00-977-3256
NSN 5999-01-300-9119
NSN 6130-01-526-3193
NSN 6645-00-300-0401
NSN 6105-01-447-5037
NSN 6320-01-066-1766