Model: X1679

Stop-check Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Valve Operation Method
Manual
Flange Shape
Round 1st end
Connection Type
Flange 1st end
Mounting Position
Horizontal or vertical
Valve Size
2.500 inches
Maximum Operating Pressure
500.0 pounds per square inch single response
Outside Diameter
6.125 inches 1st end
Face To Face Distance
12.500 inches
Thickness
0.938 inches 1st end
Flange Face Design
Plain 1st end
Material
Copper alloy 903 body
Material
Copper alloy 903 flow control device
Material
Nickel alloy 400 seat or nickel alloy r-405 seat
Material
Nickel alloy 400 stem or nickel alloy r-405 stem
Media For Which Designed
Water, salt single response
Style Designator
Straight through flanged ends
Reference Number Differentiating Characteristics
Asdifferentiated by item name and flange shape style
NSN
4820-00-202-6821
Part Number
X1679
Description
Valve,stop-check
CAGE
71905

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 X1679 NSN 4820-00-202-6821

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
109.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
A
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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: 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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