Model: 670A4

Engine Valve Seat Insert

Special Features:

Counterbored, 30.0 deg, 1.719 in. Dia

Properties:

Overall Height
Between 0.3437 inches and 0.3487 inches
Body Outside Diameter
Between 2.003 inches and 2.004 inches
Body Inside Diameter
Between 1.620 inches and 1.630 inches
Seat Angle In Deg
1.333
Hardness Rating
38.0 rockwell c body
Hardness Rating
48.0 rockwell c face
Seating Surface Shape
Angular
Material
Steel
Style Designator
Plain
NSN
2805-00-752-1940
Part Number
670A4
Description
Insert,engine Valve Seat
CAGE
56442

A metal ring designed to provide a seating surface for a valve, poppet, engine it is made of special high-grade alloy metal that can withstand high operating temperatures. For fulid valves, see seat, valve.

Part 670A4 NSN 2805-00-752-1940

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
42140
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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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