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NSN 4820-01-550-2921

Flow Switching Valve Block

About this product

Wear coated, drilled without sealing compound; asbestos free.

Manufacturer part number 803-2177917-04AAF for national stock number 4820015502921.

Datasheet

  • Product description

    Gate Valve NSN 4820-01-550-2921.

  • MPN or Model

    803-2177917-04AAF

  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Flange Diameter
    7.687 inches
  • Bonnet Type
    Outside screw-yoke
  • Bonnet Attachment Method
    Bolted
  • Bolt Hole Quantity
    6
  • Valve Operation Method
    Manual
  • Connection Type
    Flange, round w/holes
  • Valve Size
    4.000 inches
  • Stem Type
    Rising
  • Face To Face Distance
    6.750 inches
  • Flange Face Design
    Plain
  • Part Name Assigned By Controlling Agency
    Gate valve, bronze flanged, 250 psi wog
  • Inlet Relationship With Outlet
    Identical
  • Material
    Copper alloy body
  • Material Specification
    Astm b61 assn standard single material response body
  • Furnished Items And Quantity
    1 handwheel
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Gate Valve

A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

Mechanic Bill explains Flow Switching Valve Block

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NSN 4820015502921

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
803-2177917-04AAF Naval Ship Systems Command
803-2177917 Naval Ship Systems Command
803-2177917-045AF Naval Ship Systems Command
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