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 6105-01-307-6016
NSN 6145-01-649-7421
NSN 4140-00-399-5994
NSN 5905-01-425-7736
NSN 5895-01-232-0064
NSN 5895-01-418-5233
NSN 5910-01-376-8451
NSN 5998-00-194-5327
NSN 6130-01-387-2078
NSN 6145-01-585-6780
NSN 6135-01-265-1384
NSN 5925-01-444-5111