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 5915-01-389-0025
NSN 5996-00-462-2533
NSN 5920-00-010-6652
NSN 6130-01-340-7846
NSN 7035-01-596-5381
NSN 5935-00-362-3873
NSN 5965-01-072-8585
NSN 5855-01-138-4985
NSN 5996-01-067-8303
NSN 5910-01-332-1026
NSN 6685-01-010-3234
NSN 5985-01-592-8878