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4130 Steel Milspec 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.  


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
N400P19 N400P19 18701.4800.9180.090
NAS620B6L NAS620B6L 15000REV 7 0.2670.1430.016
NAS620A416 NAS620A416 10400REV 7 0.4680.2550.063
N401P39 N401P39 75000.5570.1980.036
AN960-C10LL AN960-C10LL 60400REV 21 0.4380.2030.016
AN960-816 AN960-816 0REV 18 0.8750.5150.063
N400P28 N400P28 04.4802.6050.219
TitleOutside Dia.Inside Dia.Thickness
300-1483-0330.4810.2810.033
650-3540-0710.6310.4030.071
650-2534-0610.4850.2830.061
650-1682-0290.4640.2130.029
TitleOutside Dia.Inside Dia.ThicknessSizeMaterial
F8-375062NM0.3750.170.062#8Fibre
F4-250031NM0.250.1150.031#4Fibre
TitleOutside Dia.Inside Dia.ThicknessItem NameMaterial
560-641-0311.250.4710.031Special Flat Washers - BrassBrass

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