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 6110-01-575-1897
NSN 5999-01-318-1334
NSN 7035-00-238-3662
NSN 5990-00-935-5610
NSN 5999-01-341-6784
NSN 6110-01-560-2095
NSN 5999-00-420-1483
NSN 6610-01-300-1789
NSN 6645-00-551-8291
NSN 6150-01-071-2381
NSN 5855-00-688-9954
NSN 5965-00-137-2605