Model: 644U

Di Compound Pressure-vacuum Gage

Properties:

Overall Depth
1.220 inches
Overall Diameter
2.250 inches
Case Material
Steel
Case Surface Treatment
Enamel, black
Graduation Unit
5.0 inches and 3.0 pounds per square inch
Actuation Type
Single bourdon tube
Adjustability
Nonadjustable
Scale Range
+0.0/+30.0 inches of mercury and +0.0/+15.0 pounds pressure per square inch
Scale Range
+0.0 to 30.0 inches of mercury and +0.0 to 15.0 pounds pressure per square inch
Scale Name
Pressure-vacuum
Dial Size
2 in. Dia
Connection Quantity
1
Pointer Color
Black
Pointer Type
Indicating
Scale Type
Multiple
Scale Smallest Increment
1.0 inches and 1.0 pounds per square inch
Connection Type
External
Mounting Method
Flush panel and stud and bracket
Stud Quantity
2
Scale Accuracy
2 pct middle half of range
Actuating Element Material
Phosphor bronze
Scale Inscription/background Color
Black figures on white background
Scale Name For Which Pointer Is Designed
Pressure-vacuum
Connection Location
Back, center
Bezel Type
Snap-on
Protective Crystal Material
Glass
Connection Size
0.156 in. Diameter hose
Stud Location
Back
Connector Type Vent
Not provided
Material
Steel
Material
Steel
Surface Treatment
Enamel
Surface Treatment
Enamel, black
Reference Number Differentiating Characteristics
As differentiated in actuating element data, multiple reading scale, dial data, case data, glass protective crystal, and connection data
NSN
6685-00-228-3781
Part Number
644U
Description
Gage,compound Pressure-vacuum,di
CAGE
61349

An instrument designed to measure and indicate pressure and vacuum, on one dial having a divided scale, a single indicating pointer which rotates either clockwise or counterclockwise according to whether pressure is applied or withdrawn.

Part 644U NSN 6685-00-228-3781

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
07424
FIIG:
T179-B
Concept No.:
App. Key:
BA
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:
SX
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
05
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
121570
UFC:
61770
LTL:
100.0
LCL:
--
WCC:
653
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9026200000
  • SITC: 87435
  • End Use: Measuring, testing, control instruments
  • NAICS: 334513
  • USDA: 1

Freight Class: Instruments and apparatus for measuring or checking pressure

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