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 5965-01-118-1416
NSN 5935-00-616-2809
NSN 5925-01-410-8515
NSN 6130-01-424-2110
NSN 5910-01-359-6314
NSN 6620-00-269-5168
NSN 5895-00-661-1773
NSN 6620-00-303-9947
NSN 6145-01-534-9684
NSN 5925-00-782-6946
NSN 5910-01-219-9704
NSN 6145-01-389-3448