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 5945-01-415-7097
NSN 5895-01-271-5865
NSN 5965-01-483-6497
NSN 6105-01-422-0510
NSN 4140-00-715-0010
NSN 6240-01-367-3656
NSN 5895-00-644-5712
NSN 6135-01-010-0891
NSN 5960-01-495-0859
NSN 2925-01-408-9362
NSN 6685-01-059-1769
NSN 5935-00-619-5543