Model: 8U8017-4

Valve Seat

Special Features:

2 bleed holes

Properties:

Flange Diameter
Between 0.684 inches and 0.685 inches
Body Outside Diameter
Between 0.363 inches and 0.367 inches
Flange Seat To Disk End Height
Between 0.372 inches and 0.378 inches
Under Flange Height
Between 0.085 inches and 0.100 inches
Seal Accommodation Type
Recessed
Seating Surface Shape
Flat
Body Stepped Inside Diameter
0.202 inches first step and 0.205 inches first step
Body Stepped Inside Diameter
0.276 inches second step and 0.286 inches second step
Material
Aluminum alloy 7075
Surface Treatment
Anodize
Fsc Application Data
Valve, linear, directional control, acft
NSN
4820-00-340-0853
Part Number
8U8017-4
Description
Seat,valve
CAGE
60029

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 8U8017-4 NSN 4820-00-340-0853

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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