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 5945-00-077-8270
NSN 7035-00-897-7567
NSN 5999-00-993-0998
NSN 6645-01-544-3581
NSN 5996-01-478-4937
NSN 5930-00-521-5450
NSN 5910-01-013-9388
NSN 5945-00-149-1857
NSN 5895-01-539-3621
NSN 5985-00-269-5388
NSN 7035-01-467-4539
NSN 6685-01-145-0270