Model: 845-1889553

Valve Seat

Special Features:

Four lugs 0.250 in. W, 0.125 in. Deep equally spaced

Properties:

Thread Class

3a single threaded portion

Flange Diameter

3.719 inches

Body Inside Diameter

2.875 inches

Flange Seat To Disk End Height

0.250 inches

Under Flange Height

0.469 inches

Seat Angle In Deg

15.000

Thready Qty Per Inch (tpi)

12 single threaded portion

Thread Size

3.469 inches single threaded portion

Seating Surface Shape

Angular

Material

Nickel alloy a

Material Specification

Qq-n-288 federal specification single material response

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

NSN

4820-01-103-3291

Part Number

845-1889553

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 845-1889553 NSN 4820-01-103-3291

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:

Paclk Weight:

0.8000lbs

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:

050859

UFC:

29290

LTL:

77.5

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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