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Valve Seat NSN 4820-00-993-5890

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 4820-00-993-5890 NSN: 4820-00-993-5890

Features and Characteristics

Flange Diameter
2.281 inches
Taper Length
0.428 inches
Taper Minor Diameter
1.250 inches
Taper Major Diameter
1.562 inches
Body Outside Diameter
Between 1.936 inches and 1.937 inches
Flange Seat To Disk End Height
Between 0.248 inches and 0.252 inches
Under Flange Height
0.750 inches
Seat Angle In Deg
20.000
Seating Surface Shape
Angular
Material
Steel body
Material Specification
Mil-s-18410 class b, cond a military specification single material response body
Fsc Application Data
Steam turbine, electric generation
FSC
4820 Nonpowered Valves
NIIN
009935890
NSN
4820009935890

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
101B209RA
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 4820-00-993-5890
What are the manufacturers of nsn 4820009935890?
Does this nsn 4820009935890 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820009935890
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 4820009935890 contain any precious metals?
No precious metal content.
Does nsn 4820009935890 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820009935890?
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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