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 6105-00-977-8644
NSN 6105-01-099-2837
NSN 2925-01-577-0004
NSN 5999-01-480-5837
NSN 5998-01-224-4917
NSN 5920-01-029-8496
NSN 4140-00-775-4806
NSN 5999-00-665-5261
NSN 6220-01-058-1509
NSN 6150-00-265-7799
NSN 5996-01-183-3632
NSN 5975-01-272-9205