Model: 2618581

Valve Seat

Properties:

Flange Diameter

Between 0.372 inches and 0.373 inches

Body Outside Diameter

Between 0.372 inches and 0.373 inches

Body Inside Diameter

0.188 inches

Flange Seat To Disk End Height

Between 0.215 inches and 0.235 inches

Under Flange Height

Between 0.149 inches and 0.159 inches

Seal Accommodation Type

Grooved

Hardness Rating

58.0 rockwell c face and 60.0 rockwell c face

Hardness Rating

58.0 rockwell c body and 60.0 rockwell c body

Seating Surface Shape

Flat

Material

Steel comp 440c

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Style Designator

Plain flanged

NSN

4820-00-257-5196

Part Number

2618581

Description

Seat,valve

CAGE

10001

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 2618581 NSN 4820-00-257-5196

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

736

TCC:

SHC:

ACC:

Engineer Supplies

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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