Valve Seat

Model / MPN: 638212-2 | NSN: 4820-00-903-4337

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

4820-00-903-4337

Sold in multiples of

1 EA

DEMIL

Thread Class

3a single threaded portion

Seat Angle In Deg

45.000

Thready Qty Per Inch (tpi)

16 single threaded portion

Thread Size

1.375 inches single threaded portion

Seating Surface Shape

Angular

Material

Steel

Material Specification

Fed standard 66 federal standard 1st material response or aisi 416/sae 51416 assn standard 2nd material response

Surface Treatment

Passivate

Thread Series Designator

Un single threaded portion

638212 Series Parts

Pricing and Availability

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638212-2 Cross Reference

638212PC2
8R0003ITEM3-9
BWW-0067ITEM3-9
Z638212PC2