지정품명부호 검색

견고한 원통형의 품목으로서 하나 이상의 내측 카운터 보어 (COUNTER BORE)와 또는 내측 축받이를 한쪽 또는 양쪽 측면을 갖고 있다. 이는 기계,전기 또는 광학기구나 장치 등에 쓰이며 구성부품들을 분리시키고 제위치에 자리잡아주는 역활을 하며,통상키홈(KEYWAY) 또는 V자형 위치눈금을 갖고있 다. 제외:SPACER,OPTICAL ELEMENT 참조:"WASHER,RECESSED","WASHER,SHOU;DERED AND RECESSED"

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The length must exceed 25 percent of the outside diameter or distance across peripheral flats. (When the length, outside diameter, and/or distance across peripheral flats are designated as a tolerance, the maximum dimension will be used to determine compliance.) It must have one or more internal steps (counterbores) and/or external steps on either or both bearing surfaces. Excludes:SPACER, OPTICAL ELEMENT. See also WASHER, RECESSED and WASHER, SHOULDERED AND RECESSED.