ISO-10303-21; HEADER; /* 5345-01-581-7294 Commutator Surface Stone */ ENDSEC; DATA; /* NSN 5345-01-581-7294 FSC 5345 */ ENDSEC; END-ISO-10303-21; Segal Supply — mock CAD asset SKU: 5345-01-581-7294 Name: Commutator Surface Stone Format: STEP Standards: NSN 5345-01-581-7294, FSC 5345 Generated: 2026-06-18T20:43:49.620Z NOTE: placeholder geometry for demonstration. Production assets stream from the CAD repository behind this same URL with DATA_SOURCE=live.