Model: 637

Special Scale Meter

Properties:

Circuit Current For Which Designed

Dielectric Withstanding Voltage In Volts

3000.0

Overall Length

2.850 inches

Mounting Hole Diameter

0.150 inches

Scale Division Quantity

25 single indicator single range

Overall Diameter

3.510 inches

Environmental Protection

Heat resistant

Mounting Bolt Circle Diameter

3.160 inches

Furnished Items And Quantity

Mtg hardware included

Indicator Type

Dial w/pointer

Installation Design

Panel

Mounting Arrangement Style

Three hole/stud bolt circle

Frequency Response Range

+360.000/+440.000 hertz

Sensitivity Rating

100.0 milliamperes

Dial Scale Marking Color

Black single indicator single range

Accuracy In Percent

-2.0/+2.0 at full scale single indicator single range

Meter Depth Behind Mounting Flange

1.660 inches

Meter Body Diameter Behind Mounting Flange

2.800 inches

Movement Type

Moving iron vane

Background Color

White single indicator single range

Pointer Color

Black single indicator single range

Scale Marking

0; 25; 50; 75; 100; 125; percent rated amp

Mounting Facility Type And Quantity

3 screw and 3 unthreaded hole

Scale Graduation Type

Linear single indicator single range

Features Provided

Knife edge pointer and zero adjuster

Movement Suspension Method

Taut band

Circuit Attachment Method And Quantity

2 threaded stud

Nuclear Hardness Critical Feature

Nonhardened

Style Designator

Round flush mtg

Fsc Application Data

Test set, elect. Equip.

NSN

6625-01-106-7188

Part Number

637

Description

Meter,special Scale

CAGE

77221

An electrically operated instrument which has a custom scale or digital readout display, but the unit of measurement given is not covered by a more specific item name. For items without a specified unit of measurement, see meter, arbitrary scale.

Part 637 NSN 6625-01-106-7188

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

61955

FIIG:

A310A0

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:

0.5000lbs

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:

136740

UFC:

68820

LTL:

RATING VARIABLE

LCL:

WCC:

657

TCC:

SHC:

ACC:

Instruments/Radio

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Schedule B and Export

Schedule B: 9030908030
SITC: 87479
End Use: Measuring, testing, control instruments
NAICS: 334515
USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39