Valve Seat NSN 3040-01-253-8834

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: 3040-01-253-8834

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Features and Characteristics

Thread Class

3a single threaded portion

Thread Length

0.316 inches single threaded portion

Flange Diameter

Between 0.932 inches and 0.942 inches

Body Inside Diameter

0.471 inches

Flange Seat To Disk End Height

0.122 inches

Under Flange Height

Between 0.311 inches and 0.321 inches

Seat Angle In Deg

15.000

Thready Qty Per Inch (tpi)

24 single threaded portion

Thread Size

0.766 inches single threaded portion

Seating Surface Shape

Angular

Criticality Code Justification

Zzzy

Material

Nickel alloy

Material Specification

Qq-n-281 federal specification single material response or qq-n-288 federal specification single material response

Style Designator

Threaded flanged

Thread Series Designator

Uns single threaded portion

Reference Number Differentiating Characteristics

Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications

FSC

3040 Miscellaneous Power Transmission Equipment

NIIN

012538834

NSN

3040012538834

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

845-2445177 PC 19

Cage Code:

80064

Status:

MSDS:

Part Number:

2620-902PC4(0.50IN)

Cage Code:

96169

Status:

MSDS:

Part Number:

2632-903X6PC19(0.50IN)

Cage Code:

96169

Status:

MSDS:

Part Number:

845-5445177

Cage Code:

80064

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 3040-01-253-8834

What are the manufacturers of nsn 3040012538834?

Naval Ship Systems Command (80064)
Electric Boat Corporation (96169)

Does this nsn 3040012538834 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3040012538834
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 3040012538834 contain any precious metals?
No precious metal content.

Does nsn 3040012538834 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3040012538834?
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:

What do you get when you order from nationalstocknumber.org?

On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service