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Beryllium Copper Milspec Bellevilles - 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.   


Milspec: Military standards are most often defined by an efficient operation and substantial longevity in inhospitable or rugged conditions and environments.  

Bellevilles: sometimes referred to as disk springs, may be stacked to create a more constant spring effect and various degrees of deflection according to the application needs. 

For more information on bellevilles
TitlePart NumberQTY-OHDRAWINGOUTER DIAMINNER DIAMTHICK
N400P83 N400P83 03.7301.4180.219
NAS1149D0932J NAS1149D0932J 700REV 4 1.0620.5780.032
NAS1515-M02 NAS1515-M02 4000REV 4 0.2500.1050.063
N401P19 N401P19 01.4800.9180.090
MS27183-50 MS27183-50 8850REV J 0.6250.2500.025
TitleSizeOutside Dia.Inside Dia.ThicknessMaterial
N30-146093NM3/41.4690.8120.093Nylon
TitleOutside Dia.Inside Dia.Thickness
300-2904-0311.50.8940.031
300-2828-0621.2460.8130.062
650-2470-0451.4980.2720.045
TitleSizeOutside Dia. (min/max)Inside Dia. (min/max)ThicknessFree Height (min/max)Material
CT20-624015H20.620/.630.382/.3860.015.100/.120Spring Steel

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