Model: B28171791

Valve Seat

Properties:

Flange Diameter

Between 2.747 inches and 2.749 inches

Body Outside Diameter

Between 2.626 inches and 2.627 inches

Body Inside Diameter

Between 1.311 inches and 1.314 inches

Flange Seat To Disk End Height

0.375 inches

Under Flange Height

0.250 inches

Seat Angle In Deg

45.000

Seating Surface Shape

Angular

Material

Rod, welding, surfacing face

Material

Stainless steel body

Material Specification

Mil-r-17131, type mil-rcocr-a military specification single material response face

Style Designator

Plain flanged

Fsc Application Data

Marine turbine

NSN

4820-00-238-6141

Part Number

B28171791

Description

Seat,valve

CAGE

0BR59

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 B28171791 NSN 4820-00-238-6141

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:

593

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