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

Valve Seat

Model / MPN: 002-18-20-0001-0001 | NSN: 4820-00-035-6971
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
4820-00-035-6971
Sold in multiples of
1 EA
DEMIL
NO
Flange Diameter
2.807 inches
Body Outside Diameter
2.557 inches
Body Inside Diameter
1.500 inches
Flange Seat To Disk End Height
0.160 inches
Flange Seat To Disk End Height
0.160 inches
Under Flange Height
0.175 inches
Seat Angle In Deg
0.583
Seating Surface Shape
Angular
Material
Plastic polytetrafluoroethylene
Style Designator
Plain flanged
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M317T2612 Seat, Valve 64 EA 03/06/2017
SPE7M317T3422 Seat, Valve 67 EA 03/27/2017
SPE7M318T1136 Seat, Valve 115 EA 11/24/2017
SPE7M318T4840 Seat, Valve 125 EA 03/15/2018
SPE7M318T9872 Seat, Valve 139 EA 06/28/2018
SPE7M318T073D Seat, Valve 156 EA 08/13/2018
SPE7M319T017S Seat, Valve 158 EA 06/14/2019
SPE7M421U0747 Seat, Valve 114 EA 04/22/2021

Pricing and Availability

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002-18-20-0001-0001 Cross Reference
  • 803-5001003-X7X
  • NC008847
  • 008847
  • 008847