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NSN 4820-00-085-3977

Valve Seat Insert

About this product

0.325 inches body inside diameter, 45.000 seat angle in deg, angular seating surface shape, material: stainless steel .

Manufacturer part number 21643A1 for national stock number 4820000853977.

Datasheet

  • Product description

    Valve Seat NSN 4820-00-085-3977.

  • MPN or Model

    21643A1

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    095190 - Hardware, NOI
  • Unit Weight (Est.)
    0.1 lb
  • Overall Height
    0.084 inches
  • Body Outside Diameter
    0.543 inches
  • Body Inside Diameter
    0.325 inches
  • Seat Angle In Deg
    45.000
  • Seating Surface Shape
    Angular
  • Material
    Stainless steel
  • Style Designator
    Plain
More from these suppliers
Valve Seat

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Mechanic Bill explains Valve Seat Insert

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NSN 4820000853977

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
21643A1 Robertshaw Controls Company
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