Model: 638212PC2

Valve Seat

Properties:

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
NSN
4820-00-903-4337
Part Number
638212PC2
Description
Seat,valve
CAGE
72957

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.

Part 638212PC2 NSN 4820-00-903-4337

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22113
FIIG:
A15500
Concept No.:
App. Key:
A
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481909090
  • SITC: 74790
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Parts of taps, cocks, valves and similar appliances, nesoi

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