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 6150-01-247-5755
NSN 7035-01-076-4067
NSN 5855-01-051-4143
NSN 6240-01-442-0435
NSN 5985-00-456-4391
NSN 6150-01-573-7210
NSN 6645-01-521-4383
NSN 5895-01-532-2258
NSN 5935-01-054-3862
NSN 6685-01-498-6805
NSN 6610-01-303-7913
NSN 5925-01-374-3304