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 6610-01-299-1713
NSN 5930-01-633-7026
NSN 4140-00-219-3146
NSN 5945-01-397-7255
NSN 6105-01-608-7037
NSN 2925-00-103-6822
NSN 4140-01-555-8190
NSN 6620-00-701-3575
NSN 6645-01-286-6854
NSN 6650-01-428-9958
NSN 5985-01-408-2350
NSN 5925-00-539-8372