Model: 71-S-103

Stop-check Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
6 1st end
Valve Operation Method
Manual
Flange Shape
Round with holes 1st end
Connection Type
Flange 1st end
Mounting Position
Horizontal
Features Provided
Valve stem lock shield
Valve Size
1.500 inches
Outside Diameter
5.938 inches 1st end
Face To Face Distance
8.125 inches
Thickness
0.688 inches 1st end
Bolt Hole Diameter
0.688 inches 1st end
Bolt Circle Diameter
4.625 inches 1st end
Flange Face Design
Plain 1st end
Material
Cobalt alloy flow control device
Material
Cobalt alloy seat
Material
Steel body
Style Designator
Straight through flanged ends
NSN
4820-00-639-9121
Part Number
71-S-103
Description
Valve,stop-check
CAGE

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 71-S-103 NSN 4820-00-639-9121

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:
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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