Model: 228-63-0446ITEM43

Observation Window

Special Features:

Marking 0.250 in from edge

Properties:

Overall Diameter

Between 1.938 inches and 2.000 inches

Overall Thickness

Between 0.219 inches and 0.281 inches

Surface Finish

Polished

Material Transparency

Clear

Special Markings

Heat treated

Material

Glass

Material Specification

Dd-g-451 federal specification single material response

Style Designator

Circular

NSN

9340-00-468-1418

Part Number

228-63-0446ITEM43

Description

Window,observation

CAGE

80064

A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.

Part 228-63-0446ITEM43 NSN 9340-00-468-1418

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16880

FIIG:

A15000

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

086700

UFC:

45955

LTL:

RATING VARIABLE

LCL:

WCC:

704

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7016900000
SITC: 66496
End Use: Glass-plate, sheet, etc.
NAICS: 327215
USDA: 1

Freight Class: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass