Model: B53920

Valve Seat

Properties:

Thread Class
2a single threaded portion
Thread Length
1.000 inches single threaded portion
Flange Diameter
Between 2.460 inches and 2.480 inches
Seat Radius
Between 0.185 inches and 0.189 inches
Flange Seat To Disk End Height
1.000 inches
Under Flange Height
1.000 inches
Thready Qty Per Inch (tpi)
12 single threaded portion
Thread Size
2.000 inches single threaded portion
Seating Surface Shape
Radial
Body Stepped Inside Diameter
0.500 inches first step
Body Stepped Inside Diameter
0.703 inches second step
Body Stepped Inside Diameter
1.500 inches third step
Material
Steel body
Material
Steel seat
Material Specification
De15-15b mfr ref single material response body
Material Specification
Stellite haynes 6 mfr ref single material response seat
Style Designator
Threaded flanged
Thread Series Designator
Un single threaded portion
Fsc Application Data
Steam turbine, electric generation
NSN
4820-00-992-4660
Part Number
B53920
Description
Seat,valve
CAGE
16712

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 B53920 NSN 4820-00-992-4660

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

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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