Spacer vs other HVA 280 accessories
Within the HVA 280 series, the 2103153-1 spacer differs from the 2103154-1 cable seal and the 2103171-1 cap (cover, shell) — each serves a distinct accessory function for the same connector family. The 2103013-1 retainer is another series-specific accessory; all three peers share the same Active lifecycle and HVA 280 compatibility.