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 2925-00-432-3410
NSN 6105-01-184-3209
NSN 5895-01-570-5557
NSN 6650-01-115-7981
NSN 6610-01-536-2818
NSN 5960-01-138-5897
NSN 6220-00-935-6881
NSN 5905-00-546-1354
NSN 6150-00-904-0359
NSN 5960-01-391-4701
NSN 5950-01-112-4836
NSN 5905-01-116-8938