Model: 8664ML

Valve Seat

Properties:

Thread Class
3a single threaded portion
Thread Length
0.246 inches single threaded portion
Flange Diameter
1.125 inches
Body Inside Diameter
0.734 inches
Flange Seat To Disk End Height
Between 0.093 inches and 0.103 inches
Under Flange Height
Between 0.241 inches and 0.251 inches
Seat Angle In Deg
0.750
Seal Accommodation Type
Recessed
Thready Qty Per Inch (tpi)
18 single threaded portion
Thread Size
1.000 inches single threaded portion
Seating Surface Shape
Angular
Material
Nickel or copper alloy
Style Designator
Threaded flanged
Thread Series Designator
Uns single threaded portion
NSN
4820-00-036-0912
Part Number
8664ML
Description
Seat,valve
CAGE
73475

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 8664ML NSN 4820-00-036-0912

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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