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 5895-01-038-4123
NSN 5920-00-190-7466
NSN 6620-01-043-2595
NSN 5950-01-243-1868
NSN 6320-01-125-3361
NSN 6240-01-302-1624
NSN 2925-01-191-9668
NSN 5925-01-449-1559
NSN 6145-01-055-4699
NSN 5920-01-246-0706
NSN 5950-01-609-9589
NSN 6610-01-118-5498