Used on misc electronic parts. 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,
2b single mounting facility thread class 4.594" overall length 2.460" overall width 48 single mounting facility thread quantity per inch any acceptable surface treated rectangular prism unc single mounting facility thread series
3a single pressure connection thread class 0.250" single pressure connection thread length 2.000" overall length 0.375" single connection outside diameter 24 single pressure connection thread quantity per inch cylindrical unf single pressure connection thread series
2b single pressure connection thread class 0.438" single connection inside diameter 5.188" overall length 2.812" overall width rectangular unf single pressure connection thread series
2a single mounting facility thread class 0.468" single mounting facility thread length 3.063" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount uns single mounting facility thread series
