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 6220-00-836-1494
NSN 5855-01-085-5354
NSN 5835-00-160-7142
NSN 5930-00-544-3070
NSN 5925-01-577-6014
NSN 6610-00-516-4228
NSN 6645-01-446-5025
NSN 5935-01-491-6451
NSN 5855-01-217-4172
NSN 5925-00-905-5135
NSN 4140-00-032-5739
NSN 5996-00-672-6303