Model: 52-A-591

Valve Seat

Properties:

Flange Diameter
2.625 inches
Body Inside Diameter
Between 1.500 inches and 1.505 inches
Flange Seat To Disk End Height
0.125 inches
Under Flange Height
0.625 inches
Seat Angle In Deg
45.000
Seating Surface Shape
Angular
Material
Steel
Material Specification
Qq-s-763, class 303 federal specification single material response
Style Designator
Threaded flanged
NSN
4820-00-564-6805
Part Number
52-A-591
Description
Seat,valve
CAGE
82328

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 52-A-591 NSN 4820-00-564-6805

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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