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Beryllium Copper Aircraft Flat Washers - Request for Information


Beryllium Copper: is a metal alloy composed of copper and beryllium.  It is primarily utilized for its properties of weldablity, resistance to non-oxidizing acids, and for its flexibility and shape retention.   


Aircraft:  deals with the development and manufacturing of products, structures, materials and devices used in aircrafts.  Aircraft  standards are established based on the extreme temperature, pressure and ware exposure faced in air operations.  


Flat Washers:  primarily used with other hardware, such as nuts and bolts to distribute forces in the process of tightening.  Tightness is determined by pattern features such as nominal screw sizes, screw pitch thread, interior and exterior diameter ratios and height. 


Washers: circular hardware used for spacing, load distribution, sealing and vibration reduction.  Washers are produced through stamping and shaping a variety of materials including various metal, plastic, rubber and fiber.  

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TitlePart NumberQTY-OHDRAWINGOUTER DIAMINNER DIAMTHICK
N402P64 N402P64 00.4010.1040.036
NAS620C5 NAS620C5 506000REV 7 0.2380.1280.032
N402P35C6 N402P35C6 215000.3700.1200.036
AN960-XC1216 AN960-XC1216 2250REV 21 1.3120.7650.090
AN960-B1616 AN960-B1616 250REV 21 1.7501.0150.090
MS27183-55 MS27183-55 36900REV J 0.7340.3750.064
AN960-D3616L AN960-D3616L 0REV 21 3.0002.2650.016
TitleOutside Dia.Inside Dia.Thickness
300-408-0350.2130.1410.035
300-477-0120.2460.150.012
300-548-0160.2820.160.016
650-5091-0311.3680.9630.031
650-3540-0710.6310.4030.071
220-343-0620.4390.260.062
220-238-0620.3430.1780.062

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