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4130 Steel Aircraft Special Flat 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.


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.  


Special Flat Washers:  are non-spring/wave flat spacers that have been customized through material, diameter measurements and/or height (thickness).  Specials washers are most often defined by non-circular or notched qualities in their composition.  


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-PD916 AN960-PD916 5800REV 21 1.0620.5780.063
AN960-616L AN960-616L 87300REV 18 0.6250.3900.032
AN960-1716 AN960-1716 2000REV 18 1.8121.0780.090
AN960-B4L AN960-B4L 10000REV 21 0.3120.1250.016
N402P67B N402P67B 00.5570.1510.036
NAS620B5L NAS620B5L 67100REV 7 0.2380.1280.016
N400P10 N400P10 581000.4330.2290.036
TitleOutside Dia.Inside Dia.Thickness
650-3044-0590.5010.3390.059
650-4705-0611.1870.6870.061
300-3149-0051.6141.440.005
TitleOutside Dia.Inside Dia.ThicknessSizeMaterial
F20-750062NM0.750.3780.0623/8Fibre
TitleSizeOutside Dia. (min/max)Inside Dia. (min/max)ThicknessFree Height (min/max)Material
AT16-43800616.428/.448.285/.2950.006.070/.090Stainless Steel
TitleOutside Dia.Inside Dia.ThicknessMaterial
475-501-0871.2450.9560.087Aluminum
TitleOutside Dia.Outside Dia. ToleranceInside Dia.Inside Dia. Tolerance
SU-139-.310+.000-.005.206+.005-.000

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