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 5965-00-164-8092
NSN 6610-01-146-0331
NSN 5960-01-495-0859
NSN 5910-00-504-4888
NSN 6135-00-833-9909
NSN 6685-01-367-3675
NSN 5960-01-167-8796
NSN 6150-01-127-8247
NSN 5895-01-519-8880
NSN 5935-01-005-3232
NSN 6610-01-223-9655
NSN 5945-01-125-5798