Model: 4291

Liquid Sight Indicator

Properties:

Thread Direction
Right-hand both ends
Overall Height
3.250 inches
Pipe Size For Which Designed
0.250 inches both ends
Width Across Flats
0.750 inches
Sight Height
0.750 inches
End Connection Type
Threaded internal, double compression both ends
Features Provided
Coupling nut
Thready Qty Per Inch (tpi)
18 both ends
Thread Size
0.250 inches both ends
Furnished Data
Liquid flow
Data Furnishing Method
Clear window
Material
Copper alloy
Media For Which Designed
Oil
Style Designator
Vertical shielded, double port
Thread Series Designator
Npt both ends
NSN
6680-00-586-5623
Part Number
4291
Description
Indicator,sight,liquid
CAGE
0BT82

An item so designed to have a portion or all of its body transparent to permit the visual examination of the amount of liquid in a pressure vessel, boiler, evaporator, still, processing tank, reservoir, pipe tubing line, and the like, and/or to determine the flow to a lubricated part. It may also be provided with an element that changes colors to indicate changes in moisture content. The item may have a means for refilling. Excludes indicator, liquid quantity and indicator, rate of flow.

Part 4291 NSN 6680-00-586-5623

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03175
FIIG:
A43400
Concept No.:
App. Key:
D
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:
N
PMIC:
U
ESD:
ESD:
MMAC:
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:
LVL_A:
E
LVL_B:
Q

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Schedule B and Export
  • Schedule B: 9026107000
  • SITC: 87431
  • End Use: Measuring, testing, control instruments
  • NAICS: 334513
  • USDA: 1

Freight Class: Instruments and apparatus for measuring or checking the flow or level of liquids, nesoi

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