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 5998-01-608-3111
NSN 5950-01-519-2069
NSN 6135-00-871-3646
NSN 5905-01-403-2806
NSN 5996-00-665-2869
NSN 5835-00-823-6116
NSN 6645-01-433-1398
NSN 6105-01-111-8319
NSN 6130-00-100-0175
NSN 5985-01-659-0427
NSN 6145-01-423-0906
NSN 5985-01-295-5898