Model: 661203

Valve Seat

Special Features:

8 bleed holes

Properties:

Flange Diameter

Between 0.490 inches and 0.510 inches

Body Outside Diameter

Between 0.370 inches and 0.373 inches

Body Inside Diameter

Between 0.160 inches and 0.170 inches

Flange Seat To Disk End Height

Between 0.047 inches and 0.050 inches

Under Flange Height

Between 1.030 inches and 1.050 inches

Seal Accommodation Type

Grooved

Hardness Rating

40.0 rockwell c and 47.0 rockwell c

Seating Surface Shape

Flat

Material

Steel

Fsc Application Data

Air turbine motor, aircraft constant speed drive

NSN

4820-00-885-4929

Part Number

661203

Description

Seat,valve

CAGE

59364

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 661203 NSN 4820-00-885-4929

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