| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 5310-01-278-2012
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 012782012
 
 Description:
 WASHER,CONCAVE
 
 Detail:
 A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.
 |  
		                        | 
 Manufacturer Information:
 
 | 1698AS208 | 0RMF7 | BRIGHT LIGHTS USA, INC |  | 1698AS208 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY  NOT MATERIAL/PARTS SUPPLIER | 
 |  
					            | 
 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | SURFACE TREATMENT | ANODIZE OVERALL |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |  | COLOR | OLIVE DRAB OVERALL |  | STYLE DESIGNATOR | CONCAVE |  | HOLE DIAMETER | 0.390 INCHES NOMINAL |  | RADIUS | 2.000 INCHES NOMINAL |  | OUTSIDE DIAMETER | 1.250 INCHES NOMINAL |  | MATERIAL THICKNESS | 0.250 INCHES NOMINAL | 
 |  |