Model: 7550478-6397434-4-049L1

Valve Seat

Properties:

Thread Class

3a single threaded portion

Flange Diameter

1.555 inches

Flange Seat To Disk End Height

0.153 inches

Thready Qty Per Inch (tpi)

20 single threaded portion

Thread Size

1.375 inches single threaded portion

Criticality Code Justification

Zzzy

Material

Cobalt comp 1

Material Specification

Mil-c-24252 military specification single material response

Style Designator

Threaded flanged

Thread Series Designator

Un single threaded portion

Reference Number Differentiating Characteristics

Material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

NSN

4820-01-442-9943

Part Number

7550478-6397434-4-049L1

Description

Seat,valve

CAGE

03950

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 7550478-6397434-4-049L1 NSN 4820-01-442-9943

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:

60.0

WCC:

594

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