Model: 30000404

Valve Seat

Properties:

Flange Diameter

Between 0.373 inches and 0.380 inches

Body Outside Diameter

Between 0.326 inches and 0.328 inches

Body Inside Diameter

0.187 inches

Flange Seat To Disk End Height

Between 0.069 inches and 0.328 inches

Under Flange Height

0.278 inches

Hardness Rating

32.0 rockwell c and 36.0 rockwell c

Thread Size

0.112 inches single threaded portion

Seating Surface Shape

Flat

Material

Steel

Surface Treatment

Passivate

Style Designator

Plain flanged

Thread Series Designator

Unc single threaded portion

Fsc Application Data

Servocylinderautomatic pilot system, aircraft

NSN

4820-00-580-4140

Part Number

30000404

Description

Seat,valve

CAGE

81873

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 30000404 NSN 4820-00-580-4140

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:

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:

594

TCC:

SHC:

ACC:

Equipment for Aircraft

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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