Model: 252-5A

Valve Seat

Properties:

Overall Height
0.187 inches
Body Outside Diameter
Between 0.314 inches and 0.315 inches
Body Inside Diameter
Between 0.187 inches and 0.189 inches
Hardness Rating
30.0 rockwell c body and 35.0 rockwell c body
Seating Surface Shape
Flat
Material
Steel
Material Specification
Aisi 8720 assn standard single material response
Surface Treatment
Oxide
Style Designator
Plain
Fsc Application Data
Pump, rotart, hydraulic system, aircraft
NSN
4820-00-533-3969
Part Number
252-5A
Description
Seat,valve
CAGE
45934

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 252-5A NSN 4820-00-533-3969

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

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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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