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 5895-01-295-2714
NSN 5835-01-519-2916
NSN 6240-01-046-4363
NSN 6150-01-073-7525
NSN 6240-01-610-2222
NSN 5895-01-609-5332
NSN 6220-01-311-5547
NSN 5975-01-071-4521
NSN 6130-00-549-2607
NSN 5965-01-454-8076
NSN 4140-01-536-4677
NSN 5910-00-007-3975