Model: 623

Electrical Frequency Meter

Special Features:

Ruggedized

Properties:

Overall Length

2.470 inches

Mounting Hole Diameter

Between 0.120 inches and 0.130 inches

Scale Division Quantity

20 single indicator single range

Overall Diameter

2.695 inches

Environmental Protection

Shock resistant and vibration resistant

Mounting Bolt Circle Diameter

2.440 inches

Furnished Items And Quantity

Gasket 1; mtg bolts 3

Indicator Type

Dial w/pointer

Installation Design

Panel

Mounting Arrangement Style

Three hole/stud bolt circle

Frequency Response Range

+45.000/+65.000 hertz

Dial Scale Marking Color

Black single indicator single range

Accuracy In Percent

-28.0/+28.0 at full scale single indicator single range

Meter Depth Behind Mounting Flange

1.430 inches

Meter Body Diameter Behind Mounting Flange

2.150 inches

Movement Type

Moving coil, permanent magnet and moving iron vane

Background Color

White single indicator single range

Pointer Color

Black single indicator single range

Power Source

External

Mounting Facility Type And Quantity

3 unthreaded hole

Scale Graduation Type

Linear single indicator single range

Measurement Range

+45.0/+65.0 hertz single indicator single range

Features Provided

Zero adjuster

Movement Suspension Method

Jewel pivot base

Circuit Attachment Method And Quantity

2 threaded stud

Nuclear Hardness Critical Feature

Nonhardened

Style Designator

Round flush mtg

Fsc Application Data

Test sets, electronic systems, except specially designed

NSN

6625-01-105-8334

Part Number

623

Description

Meter,electrical Frequency

CAGE

77221

An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.

Part 623 NSN 6625-01-105-8334

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16454

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:

2.6000lbs

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