NSN 5310-00-281-2521, (5310002812521) Parts Inventory

Item Name	Washer Spring Tension
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5310 Nuts and Washers
National Item Identification Number (NIIN)	00-281-2521 (002812521)
NCB Code	USA (00)
Manufacturer	Navair And Navsea Managed, Northrop Grumman Systems Corporation, Westinghouse Electric Corp

Part Number	Manufacturer	Item Name	Cage Code	RFQ
43W5740-268	navair and navsea managed	washer spring tension	10001	RFQ
654113PC3	navair and navsea managed	washer spring tension	10001	RFQ
M7408221	northrop grumman systems corporation	washer spring tension	97942	RFQ
M7408221	westinghouse electric corp	washer spring tension	79500	RFQ

MRC	Criteria	Characteristic
AAUB	HOLE DIAMETER	0.1865 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM
ABKV	OUTSIDE DIAMETER	0.375 INCHES NOMINAL
ABKW	OVERALL HEIGHT	0.0653 INCHES NOMINAL
ABPX	MATERIAL THICKNESS	0.005 INCHES NOMINAL
MATT	MATERIAL	COPPER ALLOY OVERALL
SFTT	SURFACE TREATMENT	CADMIUM OVERALL
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL