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NSN 4820-00-939-8023

Flow Switching Valve Block

About this product

2.000 inches pipe size accommodated, outside screw-yoke bonnet type, manual valve operation method, connection type: butt weld pipe.

Manufacturer part number B8354B-57S for national stock number 4820009398023.

Datasheet

  • Product description

    Gate Valve NSN 4820-00-939-8023.

  • MPN or Model

    B8354B-57S

  • Schedule B
    8481.80.3055 (Gate type taps, cocks and valves of steel, hand operated)
  • NMF (National Motor Freight)
    050855 - Cocks R Valves Etc Bbc
  • Unit Weight (Est.)
    57.3 lb
  • Pipe Size Accommodated
    2.000 inches
  • Bonnet Type
    Outside screw-yoke
  • Valve Operation Method
    Manual
  • Connection Type
    Butt weld pipe
  • Maximum Operating Pressure And Media For Which Designed
    1500.0 pounds per square inch steam
  • Stem Type
    Rising
  • Criticality Code Justification
    Zzzy
  • Material
    Stainless steel body
  • Nondefinitive Specification/std Data
    B composition
  • Departure From Cited Document
    Quality assurance testing iaw navy level 1 assurance guide
  • Reference Number Differentiating Characteristics
    Quality control iaw navships 0948-045-7010 material identification and control instruction for level 1 items
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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 4820009398023

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
B8354B-57S Velan Valve Corporation
51484ITEM1 Velan Valve Corporation
51484ITEM1L1 Naval Inventory Control Point
B08-3054B05TS23256-10REVBMODL1 Naval Inventory Control Point
B8354B-57SL1 Naval Inventory Control Point
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