Model: 375-1-1-4

Stop-check Valve

Properties:

Pipe Size Accommodated
1.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Connection Style
Plain, optional end (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
11-1/2 1st end
Maximum Operating Pressure
200.0 pounds per square inch single response
Thread Size
1.250 inches 1st end
Material
Copper alloy seat
Material
Copper alloy stem
Material
Copper alloy body
Material
Rubber butadiene-styrene class sbr flow control device
Media For Which Designed
Nitrogen, tetraoxide single response
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-071-1871
Part Number
375-1-1-4
Description
Valve,stop-check
CAGE
82667

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part 375-1-1-4 NSN 4820-00-071-1871

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
2
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
60.0
WCC:
736
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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