Model: 21082A3

Valve Seat

Properties:

Thread Class

2a single threaded portion

Thready Qty Per Inch (tpi)

18 single threaded portion

Thread Size

1.750 inches single threaded portion

Seating Surface Shape

Angular

Material

Copper alloy 485

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

NSN

4820-00-735-4593

Part Number

21082A3

Description

Seat,valve

CAGE

73475

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 21082A3 NSN 4820-00-735-4593

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:

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