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 6145-00-036-7085
NSN 6135-01-062-9356
NSN 5895-01-544-1936
NSN 6645-01-323-1956
NSN 6685-01-332-7043
NSN 6220-00-326-9144
NSN 6110-01-640-7999
NSN 5920-01-040-7210
NSN 5925-01-553-8498
NSN 5920-01-006-8812
NSN 5895-01-386-3049
NSN 5930-01-656-5209