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

Valve Seat

Model / MPN: 280090 PIECE 15 | NSN: 4820-01-057-7282
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
4820-01-057-7282
Sold in multiples of
1 EA
DEMIL
NO
Overall Height
Between 0.123 inches and 0.127 inches
Body Outside Diameter
Between 1.044 inches and 1.046 inches
Flange Seat To Disk End Height
0.036 inches
Under Flange Height
Between 0.034 inches and 0.038 inches
Seat Angle In Deg
45.000
Seating Surface Shape
Angular
Body Stepped Inside Diameter
0.520 inches first step and 0.522 inches first step
Material
Rubber fluorocarbon
Style Designator
Threaded flanged
28009 Series Parts

Pricing and Availability

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280090 PIECE 15 Cross Reference
  • 280090-35PC15
  • 166752-0091
  • 166752-91