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Worldwide distributor of NSN parts and consumables located in the USA.

Valve Seat

Model / MPN: PL501E458AEPC3 | NSN: 2825-00-987-7454
ITAR Registered seal

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.

Product Details
NATO Stock Number
2825-00-987-7454
Sold in multiples of
1 EA
DEMIL
NO
Flange Diameter
Between 2.5005 inches and 2.5010 inches
Body Outside Diameter
Between 1.999 inches and 2.000 inches
Seat Radius
Between 0.194 inches and 0.200 inches
Flange Seat To Disk End Height
0.498 mils and 0.502 centimeters
Under Flange Height
1.000 inches
Seating Surface Shape
Radial
Body Stepped Inside Diameter
0.656 inches first step
Body Stepped Inside Diameter
0.847 inches second step
Body Stepped Inside Diameter
1.500 inches third step
Material
Steel body
Material
Steel seat
Material Specification
Mil-s-853, cl 3, ty e military specification single material response body
Material Specification
Stellite b21b23 mfr ref single material response seat
Style Designator
Plain flanged
Fsc Application Data
Turbine, steam

Pricing and Availability

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PL501E458AEPC3 Cross Reference
  • 101B354AAP3
  • 101B354AA3
  • 101B354AA3