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NSN 4820-01-536-6581

Disk Diaphragm

About this product

This is an assembly of items 12 (hinge), 13 (hinge pin), 15, (disc), 16 (disc nut), and 17 (cotter pin); dimensions are of entire assembly; next higher assembly: 803-1385721-5, 004081443, 004830681, 014814753; used on either assembly 51 or 52 as cap gasket material not relevant to this item. For disk only see 4820-01-536-6570.

Manufacturer part number 803-1385721-5X-18 for national stock number 4820015366581.

Datasheet

  • Product description

    Valve Disk NSN 4820-01-536-6581.

  • MPN or Model

    803-1385721-5X-18

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Unit Weight (Est.)
    0.2 lb
  • Inside Diameter
    Between 0.302 inches and 0.312 inches
  • Outside Diameter
    0.938 inches
  • Body Inside Diameter
    Between 0.302 inches and 0.312 inches
  • End Application
    Cvn boundary area
  • Flange Seat To Disk End Height
    0.281 inches
  • Under Flange Height
    0.657 inches
  • Tempurature Rating
    250.0 degrees fahrenheit
  • Pressure Rating
    400.0 pounds per square inch
  • Part Name Assigned By Controlling Agency
    Disc assembly
  • Material
    Nickel alloy
  • Media For Which Designed
    Water or oil or gas or steam
  • Style Designator
    Swing check
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Valve Disk

An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.

Mechanic Bill explains Disk Diaphragm

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NSN 4820015366581

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
803-1385721-5X-18 Naval Ship Systems Command
803-1385721-51-18 Naval Ship Systems Command
803-1385721-52-18 Naval Ship Systems Command
1385721 Naval Ship Systems Command
Stock Check
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