Model: 820-4446658REVB

Valve Seat

Properties:

Flange Diameter

0.900 inches

Overall Height

Between 0.436 inches and 0.440 inches

Body Outside Diameter

Between 0.623 inches and 0.624 inches

Flange Seat To Disk End Height

0.094 inches

Under Flange Height

Between 0.342 inches and 0.346 inches

Seating Surface Shape

Flat

Criticality Code Justification

Zzzy

Material

Titanium alloy

Material Specification

K162b, kennametal inc mfr ref single material response

Reference Number Differentiating Characteristics

Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications

NSN

4820-00-148-1106

Part Number

820-4446658REVB

Description

Seat,valve

CAGE

80064

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 820-4446658REVB NSN 4820-00-148-1106

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

3.5 X 3.0 X 0.5

Paclk Weight:

0.2000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

576

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