G931

Check Valve

NSN 4820-00-283-6076

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
002836076

Technical Specifications of NSN

Flow Control Device:
Disk
Disk Loading Method:
Weight
Renewable Seat Ring Type:
Threaded
Bolt Hole Quantity:
8 1st end
Valve Operation Method:
Automatic
Flange Shape:
Round with holes 1st end
Connection Type:
Flange 1st end
Mounting Position:
Horizontal
Maximum Operating Pressure:
125.0 pounds per square inch 1st response
Maximum Operating Pressure:
200.0 pounds per square inch 2nd response
Outside Diameter:
13.500 inches 1st end
Face To Face Distance:
19.500 inches
Thickness:
1.125 inches 1st end
Bolt Hole Diameter:
0.875 inches 1st end
Bolt Circle Diameter:
11.750 inches 1st end
Flange Face Design:
Plain 1st end
Material:
Copper alloy flow control device
Material:
Copper alloy seat
Material:
Copper alloy stem
Material:
Copper alloy body
Material Specification:
Astm a126-61t, cl b assn standard single material response body
Material Specification:
Astm a126-61t, cl b assn standard single material response stem
Material Specification:
Qq-c-390, alloy b5 federal specification single material response flow control device
Material Specification:
Qq-c-390, alloy b5 federal specification single material response seat
Media For Which Designed:
Steam 1st response
Media For Which Designed:
Water-oil-gas 2nd response
Style Designator:
Straight thru
NSN:
4820-00-283-6076
Item Name:
Clack Valve
Cage Code:
82666

Other Related Parts

No other part numbers with same form, fit, and function found.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
1
Status:
A

Part Materials

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

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Definition Definition of approved item name (AIN): "Clack Valve"

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.

MOE Major Organizational Entities

Entity
DSOR
User:
TENNESSEE VALLEY AUTHORITY Tennessee Valley Authority
DSOR:
Import / Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

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


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