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 6130-00-253-0198
NSN 5996-00-277-7384
NSN 5935-00-270-6698
NSN 5996-01-536-8681
NSN 6645-00-071-8173
NSN 6105-01-298-1565
NSN 7035-01-325-7658
NSN 5935-00-430-5591
NSN 2925-00-288-1394
NSN 5990-00-246-2184
NSN 6145-00-357-5010
NSN 6220-01-072-6185