Model: 577910

Valve Seat

Properties:

Flange Diameter
Between 0.855 inches and 0.865 inches
Body Outside Diameter
Between 0.621 inches and 0.623 inches
Body Inside Diameter
Between 0.398 inches and 0.402 inches
Flange Seat To Disk End Height
Between 0.040 inches and 0.050 inches
Under Flange Height
Between 0.310 inches and 0.320 inches
Seal Accommodation Type
Grooved
Hardness Rating
75.0 rockwell r and 15.0 rockwell superficial 15-n
Seating Surface Shape
Flat
Material
Stainless steel
Surface Treatment
Passivate
Style Designator
Plain flanged
NSN
4820-00-979-6366
Part Number
577910
Description
Seat,valve
CAGE
73030

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 577910 NSN 4820-00-979-6366

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:
F

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
594
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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