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Valve Seat NSN 4820-00-725-0989

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 4820-00-725-0989 NSN: 4820-00-725-0989

Features and Characteristics

Thread Class
2a single threaded portion
Err Default
1.375 inches third threaded portion
Overall Height
1.688 inches
Body Inside Diameter
Between 1.240 inches and 1.260 inches
Thready Qty Per Inch (tpi)
18 single threaded portion
Thread Size
1.750 inches single threaded portion
Seating Surface Shape
Flat
Material
Steel comp 303
Surface Treatment
Passivate
Style Designator
Plain threaded
Thread Series Designator
Uns single threaded portion
FSC
4820 Nonpowered Valves
NIIN
007250989
NSN
4820007250989

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8059-17
Cage Code:
15187
Status:
A
MSDS:
Part Number:
A7434-001-156
Cage Code:
15187
Status:
A
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 4820-00-725-0989
What are the manufacturers of nsn 4820007250989?
Does this nsn 4820007250989 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820007250989
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 4820007250989 contain any precious metals?
No precious metal content.
Does nsn 4820007250989 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820007250989?
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:
A
Cond. Code:
2
Status:
A

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