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 5975-00-580-0434
NSN 6240-01-520-6925
NSN 6320-01-624-0193
NSN 5895-01-290-3413
NSN 6105-01-190-5434
NSN 2925-01-269-3861
NSN 5930-00-216-7511
NSN 6240-00-518-2400
NSN 5999-00-432-5771
NSN 6240-00-308-9456
NSN 5925-00-331-9297
NSN 2925-00-808-5077