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 5950-01-384-5614
NSN 5905-00-111-4743
NSN 6240-00-372-4841
NSN 5910-00-987-6684
NSN 5950-00-444-4852
NSN 5965-01-200-6613
NSN 6240-01-517-6086
NSN 6645-01-659-8683
NSN 6130-01-422-4258
NSN 6645-01-290-3930
NSN 6130-00-205-1714
NSN 5930-00-149-1696