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 6610-00-275-8555
NSN 6135-00-299-6918
NSN 5855-00-821-7512
NSN 5910-01-652-4060
NSN 5905-01-468-0284
NSN 6220-01-436-3850
NSN 6135-00-191-6444
NSN 5930-01-072-7576
NSN 2925-01-371-6853
NSN 5895-01-152-2820
NSN 5975-01-132-3603
NSN 5910-01-281-7352