Model: 5121B

Valve Seat

Properties:

Flange Diameter

0.859 inches

Body Outside Diameter

Between 0.361 inches and 0.362 inches

Body Inside Diameter

0.219 inches

Flange Seat To Disk End Height

0.125 inches

Under Flange Height

0.438 inches

Seal Accommodation Type

Recessed

Hardness Rating

325.0 brinell standard body and 350.0 brinell standard body

Seating Surface Shape

Flat

Material

Steel

Material Specification

Qq-s-763, class 410 federal specification single material response

Style Designator

Plain flanged

NSN

4820-00-623-8754

Part Number

5121B

Description

Seat,valve

CAGE

0AT62

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 5121B NSN 4820-00-623-8754

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:

133300

UFC:

63220

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