Model: 253871

Valve Disk

Special Features:

Material specification is astm a494 grade m30c. Next higher assembly: 4820-01-467-6910, 4820-01-541-5700, 4820-01-467-6910, 4820-01-474-1716, 10 inch gate valve iaw mil-v-1189

Properties:

Taper Length

11.188 inches

Taper Minor Diameter

1.774 inches

Taper Major Diameter

3.758 inches

Pressure Rating

250.0 pounds per square inch

Seat Angle

5.0 degrees

Material

Nickel alloy

Media For Which Designed

Gas or oil or water

Style Designator

Solid wedge

Supplementary Features

Supplied with excess material on the seating surface that must be machined off when fitting new seat and wedge. Replaces 4820-01-455-5005 due to design change for a one-piece cast wedge that replaces a two-piece, brazed wedge.

NSN

4820-01-511-3905

Part Number

253871

Description

Disk,valve

CAGE

43689

An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.

Part 253871 NSN 4820-01-511-3905

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

35224

FIIG:

A539Y0

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:

56.8000lbs

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:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

671

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