Model: AL52989-189PC4

Valve Seat

Properties:

Thread Class
2a single threaded portion
Thread Length
1.250 inches single threaded portion
Overall Height
1.250 inches
Body Inside Diameter
30.125 inches
Thread Size
31.500 inches single threaded portion
Seating Surface Shape
Flat
Material
Copper
Style Designator
B5 plain threaded
Style Designator
Plain threaded
Thread Series Designator
Unc single threaded portion
NSN
4820-00-036-0454
Part Number
AL52989-189PC4
Description
Seat,valve
CAGE

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 AL52989-189PC4 NSN 4820-00-036-0454

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

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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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