National Stock Number (NSN) 5999-01-123-9674 (5999011239674) Parts List

Item Name	Heat Sink Electrical Electronic
Federal Supply Group (FSG)	Electrical and Electronic Equipment Components
Federal Supply Class (FSC)	5999 Miscellaneous Electrical and Electronic Components
National Item Identification Number (NIIN)	01-123-9674 (011239674)
NCB Code	USA (01)
Manufacturer	Nimikkeistokeskus Ncb Finland, Ge Aviation Systems Ltd

Part Number	Manufacturer	Item Name	Cage Code	RFQ
10139503	nimikkeistokeskus ncb finland	heat sink electrical electronic	a486g	RFQ
708517-3	ge aviation systems ltd	heat sink electrical electronic	19623	RFQ

MRC	Criteria	Characteristic
ABHP	OVERALL LENGTH	3.970 INCHES NOMINAL
ABKW	OVERALL HEIGHT	0.501 INCHES NOMINAL
ABMK	OVERALL WIDTH	1.220 INCHES NOMINAL
FEAT	SPECIAL FEATURES	8 VARIOUS SIZE HOLES
MATT	MATERIAL	ALUMINUM ALLOY 5052
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE
SFTT	SURFACE TREATMENT	TIN
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE