Used on gear housing for water pump cummins model vt-903m diesel engines onboard 41 ft coast guard vessels. 0.1250" first hole diameter 0.5620" overall length 17a split, plain, no outside flanges
items are being coded as critical to insure source inspection will be performed at the point of manufacture, prior to material receipt by the us navy or other dod components. these items are piece parts or end items in support of vital military hardware necessary to sustain the successful mission of the ships, submarines,