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 5915-00-783-4480
NSN 2925-01-562-1663
NSN 5915-01-644-9698
NSN 5915-01-269-3874
NSN 6105-01-499-8804
NSN 5895-01-528-7708
NSN 6645-01-296-9769
NSN 7035-01-528-7870
NSN 6610-01-577-3834
NSN 6645-00-401-5563
NSN 6610-01-204-9146
NSN 6135-01-447-3086