Model: 52660-300 ITEM NO. 16

Valve Seat

Properties:

Flange Diameter

Between 0.725 inches and 0.730 inches

Body Outside Diameter

Between 0.558 inches and 0.560 inches

Flange Seat To Disk End Height

Between 0.094 inches and 0.098 inches

Under Flange Height

Between 0.245 inches and 0.255 inches

Seating Surface Shape

Flat

Body Stepped Inside Diameter

0.249 inches first step and 0.251 inches first step

Body Stepped Inside Diameter

0.3752 inches second step and 0.3757 inches second step

Criticality Code Justification

Zzzy

Material

Plastic

Material Specification

N0/4203 mfr ref single material response

Style Designator

Plain flanged

Reference Number Differentiating Characteristics

Cleaned in accordance with mil-p-52211

NSN

4820-01-096-8887

Part Number

52660-300 ITEM NO. 16

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 52660-300 ITEM NO. 16 NSN 4820-01-096-8887

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

576

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