SC-3 single check valve. P/N 800372. NSN 4820007748299.
Replaces VP800372X, 5003980, 5003981, 5003982, 5003983, 5003984, 5003985, 5003986, 800839.
1/2 inch pipe threads on both ends. Arrow on valve shows flow direction. Replaces SC-1 and SC-2 series valves.
Used on the M915A3, M916A3, M917A2 series.
The SC-3 in-line single check valve allows air flow in one direction only. This prevents back flow and effectively isolates air system components. Only slight pressure is required to open the valve in the direction of flow.