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 5999-00-246-4368
NSN 6240-00-271-5995
NSN 6220-00-702-5114
NSN 5985-00-518-0313
NSN 6620-01-149-9192
NSN 6645-01-413-8003
NSN 5950-01-085-6565
NSN 5925-00-922-7604
NSN 6645-01-381-6084
NSN 6110-01-608-3058
NSN 5999-01-553-2185
NSN 5930-00-596-9276