Model: K29913-3

Concave Washer

Special Features:

Color natural

Properties:

Hole Diameter

0.300 inches

Radius

Between 0.360 inches and 0.390 inches

Outside Diameter

0.460 inches

Material Thickness

0.065 inches

Min. Tensile Strength (psi)

180000 pounds per square inch

Hardness Rating

Between 40.0 rockwell c and 43.0 rockwell c

Surface Finish

32.0 microinches outer

Material

Steel comp 631

Material Specification

Ams 5528 assn standard single material response

Surface Treatment

Nickel and cadmium

Surface Treatment Specification

Ams 2416 assn standard single treatment response

Style Designator

Concave

NSN

5310-01-105-1867

Part Number

K29913-3

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 K29913-3 NSN 5310-01-105-1867

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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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