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 6685-01-616-4607
NSN 6135-00-583-3966
NSN 5930-01-465-4753
NSN 5975-01-517-7190
NSN 6145-01-295-3162
NSN 6135-01-275-1363
NSN 5965-01-441-9505
NSN 6130-01-011-2142
NSN 5985-01-498-9050
NSN 5925-01-219-4176
NSN 7035-00-870-0290
NSN 5910-00-816-9909