Model: 803-4384536-54A2AF

Stop-check Valve

Special Features:

This valve is asbestos free, supplied without union nuts, tailpieces iaw 803-7063850 unless specified. Meets type i vibration requirements of mil-std-167 by navsea ltr. Ser. 08m/90-08796 dated 10/3/90; meets shock requirements of mil-s-901d, interim change 1 for lightweight equipment, grade 1, class i, type a, hull/frame mounted by navsea let. Ser. 08m/97-08748 dated 8/28/97

Properties:

Pipe Size Accommodated
1.000 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Union
Maximum Operating Temp
150.0 degrees fahrenheit 1st response
Maximum Operating Temp
150.0 degrees fahrenheit 2nd response
Maximum Operating Temp
150.0 degrees fahrenheit 3rd response
Connection Style
Socket with brazing ring (pipe) all ends
Valve Operation Method
Automatic or manual
Connection Type
Unthreaded internal pipe all ends
Mounting Position
Horizontal or vertical
Features Provided
Bonnet packing and valve stem lock shield
Maximum Operating Pressure
400.0 pounds per square inch single response
Material
Copper alloy 922 body
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device
Material
Plastic polytetrafluoroethylene packing
Material Specification
Astm b164 assn standard single material response stem or qq-n-281 federal specification single material response stem
Material Specification
Astm b61 assn standard single material response body
Material Specification
Astmb164 assn standard single material response flow control device or astm b494, grade -30c assn standard single material response flow control device
Material Specification
Astmb164 assn standard single material response seat or astm b494, grade -30c assn standard single material response seat
Material Specification
Mil-p-24503, type ii, class 2, grade n military specification single material response packing
Media For Which Designed
Steam 2nd response
Media For Which Designed
Water, fresh 3rd response
Media For Which Designed
Air 1st response
Style Designator
Angle
NSN
4820-01-497-6998
Part Number
803-4384536-54A2AF
Description
Valve,stop-check
CAGE
53711

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 803-4384536-54A2AF NSN 4820-01-497-6998

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:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
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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