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.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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