Model: 9988

Valve Seat

Properties:

Flange Diameter

2.000 inches

Body Outside Diameter

Between 1.751 inches and 1.752 inches

Body Inside Diameter

1.250 inches

Flange Seat To Disk End Height

0.188 inches

Under Flange Height

0.688 inches

Seat Angle In Deg

45.000

Hardness Rating

210.0 brinell standard body

Seating Surface Shape

Angular

Style Designator

Plain flanged

NSN

4820-00-337-1083

Part Number

9988

Description

Seat,valve

CAGE

90099

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 9988 NSN 4820-00-337-1083

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:

594

TCC:

SHC:

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