Model: KFN619B10

Concave Washer

Special Features:

Used with p/n kfn619n10 nut, self aligning

Properties:

Hole Diameter
0.423 inches
Radius
Between 0.313 inches and 0.318 inches
Outside Diameter
Between 0.580 inches and 0.590 inches
Material Thickness
Between 0.135 inches and 0.145 inches
End Application
C-130j hercules aircraft
Part Name Assigned By Controlling Agency
Washer, self aligning, concave
Material
Steel comp 630
Material Specification
Ams5643, cond h-1025 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, class3 federal specification single treatment response
Style Designator
Concave
NSN
5310-01-522-2343
Part Number
KFN619B10
Description
Washer,concave
CAGE
15653

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part KFN619B10 NSN 5310-01-522-2343

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15930
FIIG:
A022B0
Concept No.:
1
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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