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 5905-01-429-9072
NSN 6110-01-215-7681
NSN 6320-01-592-6248
NSN 5960-01-138-3337
NSN 5945-01-575-0755
NSN 5930-01-275-5909
NSN 5945-00-955-1190
NSN 5895-01-024-9573
NSN 5990-01-113-8121
NSN 2925-01-139-5144
NSN 6110-01-364-8880
NSN 5945-01-049-1381