PREFERRED PARTS LIST PPL-21 (W/ NOTICE 1), GODDARD SPACE FLIGHT CENTER (MAY 1996)

PREFERRED PARTS LIST PPL-21 (W/ NOTICE 1), GODDARD SPACE FLIGHT CENTER (MAY 1996)., The Goddard Space Flight Center Preferred Parts List, PPL-21, supersedes PPL-20, Revision 1. This latest edition of the PPL is a departure from previous issues in that it combines and updates information from MIL-STD-975 (NASA Standard Electrical, Electronic, and Electromechanical {EEE} Parts List) and PPL-20 to create a “stand alone” document. It also incorporates the screening requirements from GSFC Parts Branch Instruction 311-INST-001 (Instructions for EEE Parts Selection, Screening, and Qualification) to provide detailed Grade 1 and Grade 2 screening requirements for all part categories. This endeavor has more than doubled the page count of the PPL, but the user no longer needs to consult MIL-STD-975 to obtain GSFC parts information. Military specifications and QPLs still must be consulted for some specific military part numbers and part availability.