Model: 8930B2-741

Stop-check Valve

Properties:

Bonnet Type
Outside screw-yoke
Bolt Hole Quantity
8 1st end
Maximum Operating Temp
600.0 degrees fahrenheit single response
Connection Type
Flange 1st end
Maximum Operating Pressure
2500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Outside Diameter
9.250 inches 1st end
Bolt Hole Diameter
1.125 inches 1st end
Bolt Circle Diameter
6.750 inches 1st end
Flange Face Design
Raised straight 1st end
Material
Cobalt alloy body lining
Material
Cobalt alloy flow control device
Material
Stainless steel body
Media For Which Designed
Water, fresh single response
Style Designator
Angle
Reference Number Differentiating Characteristics
Selected and tested for nuclear propulsion plant systems
NSN
4820-00-580-2890
Part Number
8930B2-741
Description
Valve,stop-check
CAGE
38056

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 8930B2-741 NSN 4820-00-580-2890

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:
A
ESD:
ESD:
MMAC:
CRITL:
Y

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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