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

Valve Seat

Model / MPN: 256121 PIECE 11 | NSN: 4820-01-486-3713
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
4820-01-486-3713
Sold in multiples of
1 EA
DEMIL
NO
End Application
Los angeles class ssn (688)
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC15TD698 Seat, Valve 7 EA 07/17/2015
SPE7MC15TJ136 Seat, Valve 14 EA 09/14/2015
SPE7MC19T129K Seat, Valve 14 EA 08/12/2019
SPE7MC20T3518 Seat, Valve 16 EA 01/13/2020

Pricing and Availability

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256121 PIECE 11 Cross Reference
  • 2285-301 PIECE 4
  • 256121