지정품명부호 검색

중심부에 구멍이 있는 원형의 품목으로서 충진상자, 패킹너트, 등을 밀봉하는데 쓰이도록 되어 있으며 미리 정해진 치수로 만들어진다. 이는(1), 비금속 물질로서 고리모양(정방향이나 직각형 단면의 고체 (무접점의 고리 제외)이거나 (2)금속토막이나 금속박모양의 금속 혹은 반금속 고리이다.

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.