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 7035-01-604-0698
NSN 6135-00-733-9665
NSN 5990-01-476-8813
NSN 6135-01-390-1841
NSN 6320-01-132-2746
NSN 6150-00-678-9294
NSN 5915-01-013-8396
NSN 6145-01-587-2371
NSN 5935-00-336-3141
NSN 2925-01-041-1173
NSN 5960-01-018-8596
NSN 5996-01-398-8197