Model: 1551-1

Check Valve

Properties:

Pipe Size Accommodated
1.000 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Piston
Maximum Operating Temp
450.0 degrees fahrenheit single response
Connection Style
Plain, optional end (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Mounting Position
Horizontal
Thready Qty Per Inch (tpi)
11-1/2 all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
1.000 inches all ends
Material
Steel body
Material
Steel flow control device
Material
Steel seat
Media For Which Designed
Oil, hydraulic single response
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-158-8811
Part Number
1551-1
Description
Valve,check
CAGE
63220

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 1551-1 NSN 4820-00-158-8811

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:
U
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:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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