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 6220-00-234-2416
NSN 6150-00-179-9876
NSN 6135-00-182-7008
NSN 6135-00-369-2368
NSN 5965-01-208-3488
NSN 6130-01-196-4545
NSN 6610-00-213-8544
NSN 4140-01-534-5347
NSN 6645-01-030-8930
NSN 5895-01-284-5133
NSN 5998-01-362-7070
NSN 5975-01-024-0678