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4130 Steel Milspec Belleville Washers - Request for Information


4130 Steel:  is a molybdenum and chromium low alloy steel with properties that allow for easy hardening through heat treatment.   4130 steel provides notable structural strength and moderate heat resistance.


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


Belleville Washers: are non-flat, cupped washes that provide load-bearing and deflection properties due to a subtitle conical shape.  In addition to introducing spring and flexibility characteristics to the seal, Belleville washers function as locking devices in low dynamic load applications. 

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
AN960-PD2016L AN960-PD2016L 0REV 21 2.0001.2650.016
MS51859-7 MS51859-7 16000REV C 0.6780.3340.040
MS15795-952 MS15795-952 6270NASM15795 REV 1 0.6880.4060.024
NAS1515-H08L NAS1515-H08L 64500REV 4 0.3750.1740.031
MS15795-536 MS15795-536 0NASM15795 REV 1 4.7502.3750.193
MS15795-928 MS15795-928 0NASM15795 REV 1 2.7501.2500.136
NAS1149D2690K NAS1149D2690K 0REV 4 2.3751.6400.090
TitleSizeOutside Dia.Inside Dia.Thickness
26-137078-L9/161.375.625.078
TitleOutside Dia.Inside Dia.ThicknessMaterial
475-83-0310.2810.1310.031Aluminum
TitleOutside Dia.Inside Dia.Thickness
650-1694-0290.3840.2150.029
650-4520-0330.9990.630.033
300-690-0610.6530.180.061
300-733-0581.7140.1880.058
300-182-0240.3690.10.024

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