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Valve Seat NSN 4820-01-171-1978

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 4820-01-171-1978 NSN: 4820-01-171-1978

Features and Characteristics

Flange Diameter
Between 0.482 inches and 0.483 inches
Body Outside Diameter
Between 0.482 inches and 0.483 inches
Body Inside Diameter
0.312 inches
Flange Seat To Disk End Height
0.120 inches
Under Flange Height
0.820 inches
Seating Surface Shape
Flat
Material
Nickel alloy
Material Specification
Qq-n-281 federal specification single material response
Style Designator
Plain flanged
FSC
4820 Nonpowered Valves
NIIN
011711978
NSN
4820011711978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
87682-7603ITEM13
Cage Code:
96169
Status:
A
MSDS:
Part Number:
522-4677496ITEM13
Cage Code:
80064
Status:
A
MSDS:
Part Number:
87682-7603
Cage Code:
96169
Status:
A
MSDS:
Part Number:
522-4677496
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 4820-01-171-1978
What are the manufacturers of nsn 4820011711978?
Does this nsn 4820011711978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011711978
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 4820011711978 contain any precious metals?
No precious metal content.
Does nsn 4820011711978 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011711978?
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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