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 5855-00-610-4052
NSN 6645-01-399-0329
NSN 5895-01-167-7312
NSN 5965-01-565-5063
NSN 5975-00-052-4591
NSN 5999-01-605-0481
NSN 5930-00-949-7714
NSN 5835-00-518-4507
NSN 5915-01-257-9795
NSN 5965-01-196-1526
NSN 5920-01-483-3875
NSN 5945-01-578-0924