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Polyethylene Aircraft Bellevilles - Request for Information


Polyethylene: is a plastic based material with medium to high density rating that can be modified in processing.  Polyethylene is the most widely used plastic in manufacturing. 


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

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
MS15795-449 MS15795-449 0NASM15795 REV 1 0.8750.5000.058
AN960-KD8L AN960-KD8L 0REV 21 0.3750.1740.016
NAS1149C0863B NAS1149C0863B 18800REV 4 0.8750.5150.063
AN960-KD4 AN960-KD4 0REV 21 0.3120.1250.032
AN960-D6 AN960-D6 18100REV 21 0.3750.1490.032
TitleOutside Dia.Inside Dia.Thickness
650-3366-0330.6310.3840.033
300-2317-0500.6240.5170.05
TitleOutside Dia.Inside Dia.ThicknessItem NameMaterial
460-220-0910.5820.3890.091Special Flat Washers - High Carbon SteelHigh Carbon Steel
560-256-0180.2620.1580.018Special Flat Washers - BrassBrass
TitleOutside Dia. (min/max)Inside Dia. (min/max)Free Height (min/max)ThicknessMaterial
BB4-2500200.250.1320.0450.02Stainless Steel - 410

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