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 5925-01-557-6895
NSN 6150-01-065-7241
NSN 5999-01-134-5407
NSN 2925-01-648-6859
NSN 6150-01-296-4005
NSN 7035-01-612-9835
NSN 6240-00-922-1021
NSN 5915-00-340-1135
NSN 5965-01-572-2937
NSN 5935-01-053-7659
NSN 5960-01-265-4487
NSN 5920-01-212-1536