Model: 502

Null Meter

Properties:

Circuit Current For Which Designed

Ac and dc

Overall Length

1.880 inches

Center To Center Distance Between Mounting Facilities Parallel To Length

4.000 inches

Center To Center Distance Between Mounting Facilities Parallel To Width

3.560 inches

Overall Height

4.150 inches

Overall Width

4.600 inches

Mounting Hole Diameter

0.125 inches

Scale Division Quantity

1 single indicator single range

Indicator Type

Dial w/pointer

Installation Design

Panel

Mounting Arrangement Style

Four hole/stud rectangular/square

Dial Scale Marking Color

Black single indicator single range

Accuracy In Percent

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

Accuracy In Percent

-2.0 to 2.0 at full scale single indicator single range

Meter Depth Behind Mounting Flange

1.180 inches

Meter Body Diameter Behind Mounting Flange

2.790 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

Scale Marking

Zero center line only mark

Mounting Facility Type And Quantity

4 unthreaded hole

Scale Graduation Type

Linear single indicator single range

Movement Suspension Method

Taut band

Circuit Attachment Method And Quantity

2 threaded stud

Special Markings

Polarity

Material

Plastic phenolic

Nuclear Hardness Critical Feature

Nonhardened

Surface Treatment

Enamel

Style Designator

Rectangular flush mtg

Test Data Document

85936-1844 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

NSN

6625-00-431-9166

Part Number

502

Description

Meter,null

CAGE

80145

An electrically operated instrument having a zero point on its scale (usually located in the center thereof). It may not indicate units of electrical measurement. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. When the indication shows zero, an electrical value of "zero" has been reached in the circuit. It is generally used in situations in which zero is the desired effect. Excludes ammeter, galvanometer; meter, arbitary scale; and voltmeter.

Part 502 NSN 6625-00-431-9166

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

61382

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:

1.1000lbs

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