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 5935-01-641-8047
NSN 6610-01-124-8114
NSN 5935-00-440-2673
NSN 5999-01-361-4291
NSN 7035-01-141-8076
NSN 5975-01-006-2808
NSN 5910-01-065-4088
NSN 6685-00-816-8838
NSN 6645-00-102-0015
NSN 2925-01-525-8212
NSN 6135-01-176-2206
NSN 5996-00-116-7498