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 5975-00-079-0022
NSN 6650-01-479-9024
NSN 5975-01-215-3473
NSN 6105-00-952-6547
NSN 6240-00-287-1988
NSN 5910-01-440-7916
NSN 6645-01-514-7901
NSN 6320-01-125-3361
NSN 6650-01-128-8438
NSN 5985-00-275-2830
NSN 5925-01-614-5326
NSN 5835-01-237-8486