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 5975-00-906-6299
NSN 6610-01-245-8015
NSN 2925-01-364-7926
NSN 5960-01-166-8963
NSN 5985-01-128-1946
NSN 6135-01-523-3198
NSN 6130-01-034-0141
NSN 6105-01-327-1195
NSN 6610-01-551-1895
NSN 5996-01-421-4417
NSN 5835-00-222-3956
NSN 5990-01-024-9659