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 5910-00-192-8688
NSN 5965-01-444-3098
NSN 5985-01-168-8313
NSN 6645-00-086-9346
NSN 5935-00-497-2656
NSN 5910-01-604-1110
NSN 6220-00-994-1177
NSN 6685-00-842-0551
NSN 5930-01-088-0198
NSN 5975-00-159-5258
NSN 6645-00-515-6148
NSN 5855-01-531-9814