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 6150-00-600-6259
NSN 6685-01-132-3975
NSN 6220-01-130-0774
NSN 6110-00-064-7005
NSN 5930-01-576-8203
NSN 5910-01-076-9419
NSN 5925-01-353-5838
NSN 5930-01-578-6958
NSN 6150-00-104-8035
NSN 5996-01-629-6223
NSN 5925-01-311-9924
NSN 5996-01-024-9976