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 6645-01-551-6287
NSN 6610-01-583-9635
NSN 5915-01-361-5388
NSN 5996-01-408-5632
NSN 7035-01-022-1008
NSN 6320-00-403-6003
NSN 5855-01-578-6742
NSN 5925-01-406-6808
NSN 6110-00-114-0868
NSN 6150-01-086-9418
NSN 6150-01-545-0113
NSN 5960-01-266-1011