Boeing Approvals: Aerospace Anodizing, Coatings, NDT & Welding

Boeing Approved Processes for Precision Finishing and Testing

Magnetic Inspection Laboratory, Inc. (MIL) is a trusted processor for Boeing, delivering specialized finishing and testing for defense and industrial components. As an approved provider, MIL meets Boeing’s rigorous standards through processes like anodizing, cadmium plating, chem film, non-destructive testing (NDT), coatings, passivation, shot peening, and welding, backed by Nadcap and AS9100 certifications. With 82 years of expertise, we ensure precision and compliance across multiple industries. Search the table below by process or specification to verify our capabilities.

PROCESS	PROCESS CODE	SPECIFICATION	DESCRIPTION	APPROVED	REMARKS

ANODIZING	300	MIL-A-8625	TYPE I	✔
	301	MIL-A-8625	TYPE II	✔
	S304	PS 13201	ANODIZE TYPE II ONLY	✔	TYPE II ONLY
	M308	HP4-79	ANODIZE ALUMIN.	✔
				✔
BAKE	S103A	PS15063	HT STEEL – STRESS RELEIVE	✔	750°F or below
	M101B	HP1-9	HYDROGEN EMBRITTLEMENT RELIEF	✔	Approved for HP 1-9 when performing with HP 4-11

BLACK OXIDE	384	MS 8.17		✔

CAD PLATE	M341	HP4-11	CADMIUM PLATING	✔	Approved for HP 1-9 when performing with HP 4-11
	M101A	HP1-1	STRESS RELIEF FOR HP4-11	✔	Limited to stress relieving from 150 to 600 degrees Fahrenheit max

CHEM FILM	320	MIL-C-5541	CONVERSION COATING	✔	(Approval not required for International Space Station (ISS) Houston Only)
	320B	MIL-DTL-5541		✔

CHEM MILL	M531	HP18-4	Titanium or Type II Only per Limitation Codes. Boeing Apache Program Only.	✔	Limitation Codes M8 & T2
	S531	PS20022		✔

COATING	394	MIL-C-5056*	RESIN COAT	✔	Boeing Helicopter support only, Per D8-5000 Finish Code VF-1.69 in addtion to MIL-C-5056
	S391	PS18021	DFL	✔

NDE	441	BAC5436	ETCH INSPECTION	✔
	S441	PS21205	ETCH INSPECTION	✔
	402	ASTM E1444	MAG PARTICLE	✔
	400	BAC5424	MAG PARTICLE	✔
	400A	BSS7040	MAG PARTICLE	✔
	L400	DPS4.704	MAG PARTICLE	✔
	M400	HP6-5	MAG PARTICLE	✔
	403/404	MIL-STD-1949 / MIL-I-6868	MAG PARTICLE	✔
	S400	PS 21201	MAG PARTICLE	✔

	411	ASTM E1417	PENETRANT	✔
	410	BAC5423	PENETRANT	✔
	410A	BSS7039	PENETRANT	✔
	L410	DPS 4.707	PENETRANT	✔
	M410A	HP6-13	PENETRANT	✔
	412/413	MIL-STD-6866/MIL-I-6866	PENETRANT	✔
	S410A	PS21202A	PENETRANT-AL	✔
	S410C	PS21202C	PENETRANT-Co/Ni	✔
	S410D	PS21202D	PENETRANT-Cu	✔
	S410E	PS21202E	PENETRANT-LOW ALLOY STEEL	✔
	S410F	PS21202F	PENETRANT-Mg	✔
	S410H	PS21202H	PENETRANT-SS	✔
	S410J	PS21202J	PENETRANT-TI	✔

	421	BSS7041	X-RAY-FILM	✔
	420	MIL-STD-453C	X-RAY	✔
	420A	ASTM E-1742	X-RAY	✔

NDI	848A	NAS410	NDI PERSONNEL CERTIFICATION LEVEL 3 – MPI	✔
	849A	NAS410	NDI PERSONNEL CERTIFICATION LEVEL 3 – FPI	✔
	850A	NAS410	NDI PERSONNEL CERTIFICATION LEVEL 3 – XRAY

PASSIVATION		AMS 2700 / AMS-QQ-P-35		✔	DOESN’T REQUIRE APPROVAL
		BAC5625		✔	DOESN’T REQUIRE APPROVAL
		BAC5751		✔	DOESN’T REQUIRE APPROVAL
		PS13001		✔	DOESN’T REQUIRE APPROVAL
		ASTM A967		✔	DOESN’T REQUIRE APPROVAL

SURFACE TREATMENT	R516G	MIL-S-5002

TESTING	810	ASTM B117	SALT SPRAY	✔	INTERNAL SUPPORT ONLY

WELDING	S210	PS22201	ALUMINUM	✔
	S200	PS22250	ALUMINUM
	M204	HP11-1	FUSION WELDING	✔	ALUMINUM ALLOYS
	812B	NONE	BOEING APPROVED VISUAL WELD INSPECTOR CERTIFICATION PROGRAM	✔

MIL’s Boeing approvals reflect our long-standing commitment to precision and reliability for primes and machine shops. Our one-stop-shop capabilities and rigorous contract reviews ensure consistent quality and on-time delivery (93%+ OTD).

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Boeing Approved Processes for Precision Finishing and Testing