NORTHROP (NGAS)

process	process code	specification	description	approved		remarks
process	process code	specification	description	Yes	no	remarks
This approvals listing applies to Northrop Grumman Aerospace System (NGAS)
ANODIZING		MIL-A-8625*	ANODIZE	✔		Program specific Northrop requirement for seal- * 5% sodium dichromate seal is required only when MIL-A-8625 Type II anodize is called out on any C-2, E-2, EA-6, EA-18 or E-8 (Jstars) eng. Dwgs

CHEM FILM		MIL-DTL-5541	Type I Only	✔

ETCH		GP 17G ( GP17G )	PRE PEN. ETCH	✔

PASSIVATION		AMS 2700	OF C.RES. STEEL	✔
		ASTM A967		✔
		AMS-QQ-P-35		✔
		GSS7021		✔		Limited to Passivation Only

CHEM MILL		GSS 26201*		✔		* RCI 038981 was dispositioned to allow use of alt. solution, excluding periodic analysis IAW supplier procedure 24 MF 10 (5/24/06)

NDE		ASTM E 1444	MAG PARTICLE	✔
		ASTM E 1417	PENETRANT	✔
		GT 23A ( GT23A )	FPI	✔
		NGT23K	MPI	✔

TESTING		ASTM B 117	SALT SPRAY	✔

COATINGS		GSS 4310	PRIMER	✔
		GSS 4510	COATING	✔
		MIL-F-18264	ORGANIC FINISHES	✔