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 5915-01-313-5149
NSN 6135-01-442-7275
NSN 5935-01-382-8190
NSN 6240-00-087-1731
NSN 5905-01-092-8426
NSN 5905-01-613-2788
NSN 6650-01-568-0299
NSN 6685-01-105-8999
NSN 5975-01-499-3494
NSN 6110-00-899-2505
NSN 6135-01-038-6225
NSN 5999-01-359-9421