Valve Seat NSN 4820-00-408-2781

Item Description

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.

NSN: 4820-00-408-2781

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Features and Characteristics

Flange Diameter

Between 0.374 inches and 0.375 inches

Body Outside Diameter

Between 0.249 inches and 0.250 inches

Body Inside Diameter

Between 0.068 inches and 0.069 inches

Seat Radius

Between 0.040 inches and 0.042 inches

Flange Seat To Disk End Height

Between 0.069 inches and 0.071 inches

Under Flange Height

Between 0.119 inches and 0.121 inches

Hardness Rating

50.0 rockwell c and 54.0 rockwell c

Seating Surface Shape

Radial

Material

Steel comp 440c

Material Specification

Qq-s-763, class 440c federal specification single material response

Surface Treatment

Passivate

Style Designator

Plain flanged

Fsc Application Data

Valve, hydraulic steeringaircraft

FSC

4820 Nonpowered Valves

NIIN

004082781

NSN

4820004082781

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

2826124-3

Cage Code:

33068

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481909090
NAICS: 332911
SITC: 74790
Description: Parts of taps, cocks, valves and similar appliances, nesoi
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-00-408-2781

What are the manufacturers of nsn 4820004082781?

Triumph Actuation Systems - (33068)

Does this nsn 4820004082781 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820004082781
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.

Does nsn 4820004082781 contain any precious metals?
Precious metal content is unknown.

Does nsn 4820004082781 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820004082781?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

22113

FIIG:

A15500

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
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