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 5998-01-186-0022
NSN 5905-00-929-4922
NSN 6650-00-369-4429
NSN 6105-01-010-3964
NSN 6220-01-254-9770
NSN 5999-00-349-7432
NSN 6650-00-410-3582
NSN 5935-01-046-4528
NSN 5945-00-883-8417
NSN 6610-01-051-6275
NSN 7035-01-364-0286
NSN 5855-01-211-2437