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 5910-01-448-5311
NSN 5985-01-658-7327
NSN 6650-00-186-5966
NSN 5935-01-035-8116
NSN 5855-01-217-4172
NSN 6135-00-998-5884
NSN 5975-00-553-7151
NSN 6130-01-197-7397
NSN 5925-01-112-4235
NSN 5905-01-085-6405
NSN 6145-01-412-5140
NSN 6685-00-582-1215