Model: 1R3743-12-30

Restrictor Check Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Connection Style
Flared (tube) 1st end
Connection Type
Threaded external tube 1st end
Mounting Position
Horizontal
Thready Qty Per Inch (tpi)
20 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.437 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Aluminum alloy body
Material
Rubber synthetic packing
Material
Stainless steel flow control device
Media For Which Designed
Hydraulic fluid, phosphate-ester base single response
Style Designator
Straight thru
Thread Series Designator
Unf 1st end
NSN
4820-00-572-5510
Part Number
1R3743-12-30
Description
Valve,restrictor Check
CAGE
26044

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part 1R3743-12-30 NSN 4820-00-572-5510

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20520
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:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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