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 4140-00-983-4083
NSN 6645-00-544-8529
NSN 5895-01-534-3743
NSN 6620-01-179-2657
NSN 5920-00-515-3617
NSN 5996-01-363-4055
NSN 6150-01-048-3202
NSN 5985-00-067-6750
NSN 6240-01-327-4120
NSN 6240-01-302-1624
NSN 6685-01-643-6351
NSN 6645-00-342-5956