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 5920-01-308-8582
NSN 5895-01-050-3490
NSN 6145-00-340-6698
NSN 6220-01-364-9608
NSN 5996-01-281-2396
NSN 2925-01-089-6269
NSN 5910-01-394-3729
NSN 7035-01-282-7124
NSN 5895-01-600-1682
NSN 5985-00-880-2134
NSN 6240-00-204-0459
NSN 5935-01-333-6332