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 5915-01-567-7175
NSN 6650-01-100-3185
NSN 6105-01-475-4115
NSN 6685-01-492-5831
NSN 4140-00-269-5795
NSN 6135-01-633-8502
NSN 5930-01-546-8394
NSN 5930-01-010-4553
NSN 5996-01-323-6008
NSN 6610-01-487-6843
NSN 5925-01-154-6796
NSN 6240-01-541-0789