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 6645-00-340-4795
NSN 5945-01-026-5357
NSN 5996-00-875-1644
NSN 5930-01-090-9058
NSN 5920-00-110-7800
NSN 5999-00-194-7750
NSN 6130-00-765-5685
NSN 5925-01-432-0149
NSN 6130-00-558-6112
NSN 6320-01-578-6006
NSN 6620-01-173-3284
NSN 5985-00-432-2286