Model: 621

Arbitrary Scale Meter

Special Features:

Ruggedized

Properties:

Circuit Current For Which Designed

Dielectric Withstanding Voltage In Volts

3000.0

Overall Length

2.650 inches

Mounting Hole Diameter

Between 0.120 inches and 0.130 inches

Overall Diameter

2.695 inches

Environmental Protection

Cold resistant and heat resistant and shock resistant and submersible and vibration resistant and watertight

Mounting Bolt Circle Diameter

2.440 inches

End Application

Radar set an/spg-51d

Furnished Items And Quantity

Washer 9; nut 7

Indicator Type

Dial w/pointer

Installation Design

Panel

Mounting Arrangement Style

Three hole/stud bolt circle

Sensitivity Rating

20.0 microamperes

Dial Scale Marking Color

Black single indicator single range and green single indicator single range and red single indicator single range

Accuracy In Percent

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

Unable To Decode

Unable to decode or unable to decode

Meter Depth Behind Mounting Flange

1.600 inches

Meter Body Diameter Behind Mounting Flange

2.210 inches

Movement Type

Moving coil, permanent magnet

Background Color

White single indicator single range

Pointer Color

Black single indicator single range

Scale Marking

Black line at 0 and full scale; red line at mid scale; green band from 37.5 to 49.0 and 51.0 to 62.5 pct full scale

Mounting Facility Type And Quantity

3 screw and 3 unthreaded hole

Scale Graduation Type

Nonlinear single indicator single range

Features Provided

Luminous scale marking and magnetic shield and zero adjuster

Movement Suspension Method

Jewel pivot base

Circuit Attachment Method And Quantity

2 solder lug and 2 threaded stud

Special Markings

Sealed do not open

Material

Stainless steel

Nuclear Hardness Critical Feature

Nonhardened

Surface Treatment

Enamel semigloss

Special Test Features

Conforms w/mil-m-10304/5, type mr26m020dcuar

Style Designator

Round flush mtg

Supplementary Features

1650 ohms int res

Fsc Application Data

Test set, elect. Equip.

NSN

6625-01-029-6679

Part Number

621

Description

Meter,arbitrary Scale

CAGE

77221

An electrically operated instrument which has a marked scale or digital readout display, but the unit of measurement is not given. May indicate electrical or nonelectrical effects but is primarily not a current detecting device; therefore, excludes galvanometer. For instruments whose unit of measurement is not covered by a more specific item, see meter, special scale.

Part 621 NSN 6625-01-029-6679

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16476

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