ISO-10303-21; HEADER; /* 7520-01-357-6839 Rubberized Ballpoint Pen and Refill */ ENDSEC; DATA; /* NSN 7520-01-357-6839 FSC 7520 */ ENDSEC; END-ISO-10303-21; Segal Supply — mock CAD asset SKU: 7520-01-357-6839 Name: Rubberized Ballpoint Pen and Refill Format: STEP Standards: NSN 7520-01-357-6839, FSC 7520 Generated: 2026-06-18T22:59:55.119Z NOTE: placeholder geometry for demonstration. Production assets stream from the CAD repository behind this same URL with DATA_SOURCE=live.