Are you looking for part 721-1172-002, A-L1BR, ZL-17, L36 CCW, L-56-3 of Light Recognition A, Handle Door Vehicul, Clamp Synchro, Handle Manual Contr, GasketOVERVIEW. The NVG-102B is designed as a simple and field-effective method of inspecting NVG Compatible crew stations for continued compliance. See Hoffman 20-20 operator's manual for details on this device. NVIS radiance can be measured using a Hoffman NVG-103 Inspection Scope. Get a Quick Quote from Hoffman Engineering Corporation NSN parts stock here. Browse the top part numbers 723-0028-003, NVG-103-011 · 6140-01-490-3807 6695-01-479-9746 An item designed to measure and indicate the illumination intensity. Part Alternates: NVG103003, NVG-103-003, 6695-01-479-9746, Hoffman Engineering's NVG inspection scopes, the NVG-102 series and NVG-103 are designed as a simple, effective method of inspecting NVG compatible crew