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 6135-01-514-0356
NSN 6220-01-167-5436
NSN 5960-01-319-0276
NSN 5855-01-158-2709
NSN 6145-01-231-3383
NSN 6685-00-295-6365
NSN 5895-00-360-0117
NSN 6240-00-965-7997
NSN 5915-00-378-5585
NSN 5998-01-583-1385
NSN 5950-01-064-1491
NSN 5965-01-279-1075