PSC: 6150 NAICS: 335311 5 EA of NSN: 6150015154081AH There were some missing drawings, but have been added under "Additional Drawings" in the Attachments/Link section. Two drawings are not available, ... PSC: 6150 NAICS: 335311 5 EA of NSN: 6150015154081AH There were some missing drawings, but have been added under "Additional Drawings" in the Attachments/Link section. Two drawings are not available, please see the links provided in the Attachments/Link section to assist in gathering data for these missing drawings.