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 6610-01-331-6966
NSN 5910-01-281-5528
NSN 5935-01-447-3390
NSN 5945-00-019-6276
NSN 5905-01-009-0932
NSN 6650-01-338-9998
NSN 5930-01-023-8931
NSN 6645-01-195-3329
NSN 5990-01-602-6701
NSN 5950-01-238-4515
NSN 5990-00-269-2226
NSN 5960-00-163-9204