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 6645-01-370-3818
NSN 5905-01-579-3060
NSN 6610-01-392-4793
NSN 6650-01-105-5608
NSN 7035-00-295-0451
NSN 6320-01-141-3791
NSN 5950-01-522-5567
NSN 6220-00-935-1460
NSN 6135-01-059-4055
NSN 5915-00-111-1363
NSN 5915-00-984-0414
NSN 5999-01-623-2385