Model: 3R1444-1

Check Valve

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
275.0 degrees fahrenheit single response
Connection Style
Flareless all ends
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
20 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Seat Angle
12.0 degrees 1st end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Aluminum alloy 2024 seat
Material
Aluminum alloy 2024 body
Material
Aluminum flow control device
Material Specification
Qq-a-200/3 federal standard single material response body
Material Specification
Qq-a-225/6 federal standard single material response seat
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-00-050-9662
Part Number
3R1444-1
Description
Valve,check
CAGE
26044

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 3R1444-1 NSN 4820-00-050-9662

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
60.0
WCC:
736
TCC:
Z
SHC:
Z
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel

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