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Worldwide distributor of NSN parts and consumables located in the USA.

Stop-check Valve

Model / MPN: 728287 | NSN: 4820-00-188-8262
ITAR Registered seal

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.

Product Details
NATO Stock Number
4820-00-188-8262
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
6 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal
Valve Size
2.500 inches
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
6.125 inches all ends
Face To Face Distance
9.000 inches
Thickness
0.500 inches all ends
Bolt Hole Diameter
0.562 inches all ends
Bolt Circle Diameter
5.000 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy 922 body
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device
Material Specification
Qq-c-390, alloy d4 federal specification single material response body
Material Specification
Qq-n-288, comp b federal specification single material response stem
Material Specification
Qq-n-288, comp b federal specification single material response seat
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through flanged ends
Test Data Document
03950-cid882032969 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.). And 80064-5000-s4824-c1385541 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
72828 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC15TB054 Check Valve, Stop 12 EA 05/28/2015
SPE7MC20T7883 Check Valve, Stop 2 EA 04/20/2020

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728287 Cross Reference
  • CD-54791
  • CD-54791 ITEM 10
  • 388F6024H
  • 1022-006H-2.50IN CDS1022006K0001
  • S4824-1385541 2
  • 803-1385541-023
  • 803-1385541