Model: 491-12-4R

Bevel Mechanics Protractor

Properties:

General Description

12 in. Size; reversible protractor head; cast black wrinkle finish; regular blade; graduations in 8ths, 16ths, quick reading 32nds, 64ths

NSN

5210-00-779-5273

Part Number

491-12-4R

Description

Protractor,mechanics,bevel

CAGE

57163

A measuring instrument commonly used in the machinist trade for setting or checking bevels, transferring angles, checking cutter clearance, laying out angles and scribing lines. Consists of a rotatable disk, graduated in degrees, mounted on a metal frame base, and an adjustable steel blade or scale which is locked in position by a thumb nut, or clamped by an eccentric stud. May also be equipped with one or two small auxiliary vernier scales which enable a more accurate reading. Excludes protractor, one arm; protractor, two arm; protractor, three arm.

Part 491-12-4R NSN 5210-00-779-5273

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

09798

FIIG:

A23900

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: 9017204000
SITC: 87422
End Use: Laboratory testing instruments
NAICS: 334519
USDA: 1

Freight Class: Dis calculators, slide rulers and other mathematical calculating instruments