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:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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