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 6135-01-604-8739
NSN 6685-01-212-2763
NSN 5935-01-512-8312
NSN 6645-01-116-3423
NSN 5985-01-205-0496
NSN 6645-01-394-5149
NSN 5910-01-532-3193
NSN 5965-01-420-6613
NSN 6110-00-956-7472
NSN 6220-00-475-0217
NSN 5998-01-495-0524
NSN 6150-00-209-8026