Model: 370

Electrical Frequency Meter

Special Features:

Porcelain covered terminals

Properties:

Circuit Current For Which Designed

Overall Length

2.884 inches

Mounting Hole Diameter

0.147 inches

Overall Diameter

3.500 inches

Environmental Protection

Hermetic

Mounting Bolt Circle Diameter

3.160 inches

Furnished Items And Quantity

Gasket seal 1

Indicator Type

Vibrating reed

Installation Design

Panel

Mounting Arrangement Style

Three hole/stud bolt circle

Resonant Reed Quantity

Meter Depth Behind Mounting Flange

2.000 inches

Meter Body Diameter Behind Mounting Flange

2.750 inches

Movement Type

Vibrating reed

Background Color

Black single indicator single range

Power Source

External

Mounting Facility Type And Quantity

3 screw and 3 unthreaded hole

Measurement Range

+395.0/+405.0 hertz single indicator single range

Circuit Attachment Method And Quantity

2 solder lug

Operating Voltage Rating In Volts

Between 100.0 ac and 130.0 ac

Material

Aluminum and steel

Nuclear Hardness Critical Feature

Nonhardened

Surface Treatment

Cadmium and paint

Style Designator

Round flush mtg

Fsc Application Data

Test set, elect. Equip.

NSN

6625-01-180-5472

Part Number

370

Description

Meter,electrical Frequency

CAGE

57737

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 370 NSN 6625-01-180-5472

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:

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