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 5925-00-081-9135
NSN 6145-00-275-4046
NSN 5985-01-163-3873
NSN 6130-01-094-5599
NSN 5855-01-603-3309
NSN 5965-01-132-4018
NSN 5960-01-525-1690
NSN 2925-01-025-0082
NSN 5999-01-287-5044
NSN 6105-01-390-6386
NSN 6610-01-171-3010
NSN 5855-01-066-4399