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Valve Seat NSN 4820-00-399-3741

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 4820-00-399-3741 NSN: 4820-00-399-3741

Features and Characteristics

Flange Diameter
2.250 inches
Body Outside Diameter
Between 1.875 inches and 1.876 inches
Body Inside Diameter
Between 0.875 inches and 0.878 inches
Flange Seat To Disk End Height
Between 0.250 inches and 0.252 inches
Under Flange Height
0.500 inches
Seat Angle In Deg
20.000
Seal Accommodation Type
Grooved
Seating Surface Shape
Angular
Material
Steel
Style Designator
Plain flanged
FSC
4820 Nonpowered Valves
NIIN
003993741
NSN
4820003993741

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6658801-1
Cage Code:
01289
Status:
A
MSDS:
Part Number:
WW6667884 PIECE 8
Cage Code:
24446
Status:
A
MSDS:
Part Number:
5586122-8
Cage Code:
71669
Status:
A
MSDS:
Part Number:
6658801
Cage Code:
24446
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 4820-00-399-3741
What are the manufacturers of nsn 4820003993741?
Does this nsn 4820003993741 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820003993741
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 4820003993741 contain any precious metals?
No precious metal content.
Does nsn 4820003993741 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820003993741?
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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