Model: 1828AS179-1

Stop-check Valve

Special Features:

Clean and package for oxygen service per astm g93

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Maximum Operating Temp
125.0 degrees fahrenheit single response
End Application
Oxygen servicing unit a/u26u-1, ground support equipment for the f/a-18 hornet aircraft
Connection Style
External seat for gasket seal (boss) 1st end
Connection Style
Flared (tube) 2nd end
Valve Operation Method
Manual
Connection Type
Threaded external boss 1st end
Connection Type
Threaded external tube 2nd end
Mounting Position
Vertical
Maximum Operating Pressure
2640.0 pounds per square inch single response
Thread Size
0.437 inches 1st end
Thread Size
0.500 inches 2nd end
Seat Angle
37.0 degrees all ends
Criticality Code Justification
Feat
Material
Copper alloy body
Media For Which Designed
Oxygen, gaseous single response
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-01-397-5780
Part Number
1828AS179-1
Description
Valve,stop-check
CAGE
30003

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 1828AS179-1 NSN 4820-01-397-5780

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.9000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
24
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127200
UFC:
64480
LTL:
85.0
LCL:
--
WCC:
593
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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