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

Valve Seat

Model / MPN: 311420058 | NSN: 4820-00-623-9541
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
4820-00-623-9541
Sold in multiples of
1 EA
DEMIL
NO
Flange Diameter
1.800 inches
Body Outside Diameter
1.188 inches
Flange Seat To Disk End Height
0.562 inches
Under Flange Height
0.438 inches
Seat Angle In Deg
45.000
Seating Surface Shape
Angular
Body Stepped Inside Diameter
0.812 inches second step
Body Stepped Inside Diameter
1.625 mils first step and 1.626 centimeters first step
Material
Cobalt alloy face
Material
Stainless steel body
Style Designator
Plain flanged
31142 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC18T3855 Seat, Valve 11 EA 12/26/2017
SPE7MC19T3830 Seat, Valve 11 EA 01/07/2019

Pricing and Availability

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311420058 Cross Reference
  • 12429NPC19
  • 31142