Model: NL258-1

Valve Seat

Properties:

Flange Diameter

Between 5.377 inches and 5.378 inches

Taper Length

0.625 inches

Taper Minor Diameter

3.381 inches

Taper Major Diameter

5.062 inches

Body Outside Diameter

Between 4.499 inches and 4.500 inches

Body Inside Diameter

3.250 inches

Seat Radius

1.000 inches

Flange Seat To Disk End Height

0.812 inches

Under Flange Height

1.188 inches

Seating Surface Shape

Radial

Material

Rod, welding, surfacing face

Material

Steel body

Material Specification

Astm a182, grade f12 assn standard single material response body

Material Specification

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

Style Designator

Plain flanged

NSN

4820-00-767-7209

Part Number

NL258-1

Description

Seat,valve

CAGE

93591

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 NL258-1 NSN 4820-00-767-7209

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:

4.0000lbs

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:

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