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 5985-01-208-5694
NSN 6110-01-417-7017
NSN 5910-01-533-7838
NSN 6220-01-529-1169
NSN 5925-01-135-9391
NSN 7035-01-106-3476
NSN 6130-00-704-6589
NSN 5998-01-207-2412
NSN 6650-01-406-3086
NSN 4140-01-475-0373
NSN 7035-01-271-1643
NSN 6150-01-300-5474