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 5855-01-250-2421
NSN 4140-00-375-9705
NSN 6130-00-577-3475
NSN 6220-01-358-1076
NSN 6610-00-866-1757
NSN 5925-01-431-3702
NSN 5855-01-042-7990
NSN 6145-01-027-1454
NSN 5915-01-629-9166
NSN 5998-01-377-5270
NSN 6645-01-627-8040
NSN 6105-00-527-2193