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 5996-01-147-6054
NSN 6610-01-444-1490
NSN 5930-01-331-3316
NSN 5950-01-585-6932
NSN 5835-00-306-5240
NSN 6645-00-982-2846
NSN 6105-00-586-0338
NSN 5950-00-162-2528
NSN 5996-01-514-5937
NSN 6650-00-987-5070
NSN 6145-01-205-1097
NSN 5910-01-048-9194