Model: 66331

Concave Washer

Properties:

Hole Diameter

Between 0.201 inches and 0.202 inches

Radius

0.188 inches

Outside Diameter

0.312 inches

Material Thickness

Between 0.062 inches and 0.063 inches

Hardness Rating

Between 40.0 rockwell c and 48.0 rockwell c

Color

Black

Material

Steel comp 630

Surface Treatment

Oxide

Style Designator

Concave

NSN

5310-00-791-1638

Part Number

66331

Description

Washer,concave

CAGE

27777

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 66331 NSN 5310-00-791-1638

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:

095190

UFC:

49790

LTL:

70.0

LCL:

WCC:

72D

TCC:

SHC:

ACC:

Instruments/Radio

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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