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 6220-00-955-8120
NSN 6150-00-929-9634
NSN 5895-01-333-3985
NSN 6150-00-518-4558
NSN 6645-01-560-0738
NSN 5960-00-101-5461
NSN 6145-01-027-1454
NSN 6145-01-539-7231
NSN 5905-01-506-5346
NSN 6105-00-963-7213
NSN 6645-01-182-4896
NSN 6135-00-891-4944