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 5998-01-424-3978
NSN 5905-01-462-4950
NSN 4140-01-495-8789
NSN 6220-01-486-5316
NSN 6610-01-027-1641
NSN 5910-01-413-1604
NSN 6150-00-213-7878
NSN 6105-01-325-0110
NSN 5910-01-247-3669
NSN 5930-00-466-3534
NSN 6135-01-286-9563
NSN 6645-00-596-5388