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NationalStockNumber.INFO

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

Valve Seat

Model / MPN: 6658801-1 | NSN: 4820-00-399-3741
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
4820-00-399-3741
Sold in multiples of
1 EA
DEMIL
NO
Flange Diameter
2.250 inches
Body Outside Diameter
Between 1.875 inches and 1.876 inches
Body Inside Diameter
Between 0.875 inches and 0.878 inches
Flange Seat To Disk End Height
Between 0.250 inches and 0.252 inches
Under Flange Height
0.500 inches
Seat Angle In Deg
20.000
Seal Accommodation Type
Grooved
Seating Surface Shape
Angular
Material
Steel
Style Designator
Plain flanged
6658801 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M020T6752 Seat, Valve 14 EA 03/27/2020
SPE7M020T7423 Seat, Valve 14 EA 04/09/2020

Pricing and Availability

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6658801-1 Cross Reference
  • WW6667884 PIECE 8
  • 5586122-8
  • 6658801
  • 5586122-8