Model: 6859371

Valve Seat

Properties:

Flange Diameter
Between 1.122 inches and 1.123 inches
Body Outside Diameter
Between 1.008 inches and 1.012 inches
End Application
T-56 engine
Seat Radius
Between 0.030 inches and 0.040 inches
Flange Seat To Disk End Height
0.259 inches
Under Flange Height
Between 0.165 inches and 0.170 inches
Hardness Rating
32.0 rockwell c and 36.0 rockwell c
Seating Surface Shape
Radial
Body Stepped Inside Diameter
0.500 inches first step and 0.505 inches first step
Body Stepped Inside Diameter
0.978 inches third step and 0.983 inches third step
Body Stepped Inside Diameter
0.920 inches second step
Material
Steel
Style Designator
Plain flanged
NSN
4820-01-104-6770
Part Number
6859371
Description
Seat,valve
CAGE
63005

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 6859371 NSN 4820-01-104-6770

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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:
Construction Materials

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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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