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 5960-00-140-9583
NSN 4140-00-803-8997
NSN 5998-00-262-9608
NSN 6240-01-559-0684
NSN 5920-01-094-7284
NSN 6145-01-475-3587
NSN 7035-00-631-3782
NSN 5895-00-126-9583
NSN 5950-01-377-0140
NSN 6685-00-542-1233
NSN 5945-00-703-1810
NSN 5950-01-551-3675