1-321-802-5889

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
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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