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 5905-01-173-8283
NSN 5910-01-153-9733
NSN 6110-01-441-9041
NSN 5895-01-492-5777
NSN 5996-00-109-8172
NSN 7035-00-408-8170
NSN 6145-01-397-1793
NSN 5920-01-365-5878
NSN 2925-00-203-8735
NSN 6610-01-452-0676
NSN 6620-00-008-3280
NSN 5975-00-232-7647