Model: 638

Arbitrary Scale Meter

Special Features:

Ruggedized

Properties:

Circuit Current For Which Designed
Dc
Dielectric Withstanding Voltage In Volts
3000.0
Overall Length
2.850 inches
Mounting Hole Diameter
Between 0.143 inches and 0.157 inches
Scale Division Quantity
50 single indicator all ranges
Overall Diameter
3.510 inches
Environmental Protection
Cold resistant and heat resistant and shock resistant and submersible and vibration resistant and watertight
Mounting Bolt Circle Diameter
3.160 inches
Furnished Items And Quantity
Mtg hdw 3; term. Hdw 2
Indicator Type
Dial w/pointer
Installation Design
Panel
Mounting Arrangement Style
Three hole/stud bolt circle
Sensitivity Rating
10.0 milliamperes
Dial Scale Marking Color
Black single indicator all ranges
Accuracy In Percent
-2.0/+2.0 at full scale single indicator all ranges
Accuracy In Percent
-2.0 to 2.0 at full scale single indicator all ranges
Unable To Decode
Unable to decode or unable to decode
Meter Depth Behind Mounting Flange
1.660 inches
Meter Body Diameter Behind Mounting Flange
2.800 inches
Movement Type
Moving coil, permanent magnet
Background Color
White single indicator all ranges
Pointer Color
Black single indicator all ranges
Scale Marking
2 bands: top band marked 10; 20; 30; 40; 50; bottom band marked 0; 20; 40; 60; 80; 100
Mounting Facility Type And Quantity
3 screw and 3 unthreaded hole
Scale Graduation Type
Linear single indicator all ranges
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
Material
Stainless steel
Nuclear Hardness Critical Feature
Nonhardened
Surface Treatment
Enamel semigloss
Special Test Features
Conforms to mil-m-10304/12 type mr36m010dcmar
Style Designator
Round flush mtg
Fsc Application Data
Test set, elect. Equip.
NSN
6625-00-103-0327
Part Number
638
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 638 NSN 6625-00-103-0327

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16476
FIIG:
A310A0
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.8000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
--
WCC:
657
TCC:
Z
SHC:
9
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

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