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Valve Seat NSN 4820-01-268-3278

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 4820-01-268-3278 NSN: 4820-01-268-3278

Features and Characteristics

Thread Class
3a single threaded portion
Body Inside Diameter
0.844 inches
Flange Seat To Disk End Height
0.234 inches
Under Flange Height
0.110 inches
Thready Qty Per Inch (tpi)
20 single threaded portion
Thread Size
1.188 inches single threaded portion
Seating Surface Shape
Flat
Material
Nickel alloy
Material Specification
Qq-n-288 military specification single material response
Thread Series Designator
Un single threaded portion
FSC
4820 Nonpowered Valves
NIIN
012683278
NSN
4820012683278

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
803-4384536-45A-13
Cage Code:
80064
Status:
A
MSDS:
Part Number:
803438453611B13
Cage Code:
80064
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 4820-01-268-3278
What are the manufacturers of nsn 4820012683278?
Does this nsn 4820012683278 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012683278
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 4820012683278 contain any precious metals?
No precious metal content.
Does nsn 4820012683278 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012683278?
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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