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 5835-01-130-8258
NSN 5855-01-115-9014
NSN 6145-01-568-9199
NSN 5910-01-311-9261
NSN 6145-01-194-0784
NSN 5925-01-429-0392
NSN 6145-00-635-9849
NSN 5835-00-275-0584
NSN 6220-00-311-4291
NSN 5960-00-849-4334
NSN 7035-00-312-3055
NSN 5930-00-216-7511