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Valve Seat NSN 4820-01-217-9972

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 4820-01-217-9972 NSN: 4820-01-217-9972

Features and Characteristics

Thread Class
3a single threaded portion
Thread Length
0.625 inches single threaded portion
Flange Diameter
4.250 inches
Body Outside Diameter
1.688 inches
Body Inside Diameter
0.880 inches
Seat Radius
0.062 inches
Flange Seat To Disk End Height
0.625 inches
Under Flange Height
1.125 inches
Thread Size
4.250 inches single threaded portion
Seating Surface Shape
Radial
Material
Stainless steel
Thread Series Designator
Unf single threaded portion
FSC
4820 Nonpowered Valves
NIIN
012179972
NSN
4820012179972

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P8426A
Cage Code:
70667
Status:
A
MSDS:
Part Number:
NAP 804 PIECE 4
Cage Code:
70667
Status:
A
MSDS:
Part Number:
NAP 804
Cage Code:
70667
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 4820-01-217-9972
What are the manufacturers of nsn 4820012179972?
Does this nsn 4820012179972 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820012179972
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 4820012179972 contain any precious metals?
No precious metal content.
Does nsn 4820012179972 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820012179972?
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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