Model: T668-21PC17

Valve Seat

Properties:

Flange Diameter
1.186 inches
Body Outside Diameter
0.875 inches
Body Inside Diameter
0.187 inches
Seat Radius
0.593 inches
Flange Seat To Disk End Height
0.750 inches
Under Flange Height
0.330 inches
Seal Accommodation Type
Recessed
Seating Surface Shape
Radial
Material
Copper alloy
Surface Treatment
Anodize
Style Designator
Plain flanged
NSN
4820-00-389-4576
Part Number
T668-21PC17
Description
Seat,valve
CAGE
35795

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 T668-21PC17 NSN 4820-00-389-4576

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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