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Valve Seat NSN 4820-01-173-1231

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 4820-01-173-1231 NSN: 4820-01-173-1231

Features and Characteristics

Thread Class
3a single threaded portion
Err Default
0.400 inches single threaded portion
Flange Diameter
0.634 inches
Body Inside Diameter
0.283 inches
Flange Seat To Disk End Height
0.194 inches
Under Flange Height
0.503 inches
Seat Angle In Deg
50.000
Thread Size
0.500 inches single threaded portion
Seating Surface Shape
Angular
Material
Nickel alloy
Material Specification
Qq-n-281 federal specification single material response
Style Designator
Threaded flanged
Thread Series Designator
Unf single threaded portion
FSC
4820 Nonpowered Valves
NIIN
011731231
NSN
4820011731231

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
EEP-54-ASX-12
Cage Code:
55260
Status:
A
MSDS:
Part Number:
EEP-54-ASX DETAIL 12
Cage Code:
16199
Status:
A
MSDS:
Part Number:
EEP-54-ASX
Cage Code:
16199
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 4820-01-173-1231
What are the manufacturers of nsn 4820011731231?
Does this nsn 4820011731231 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820011731231
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 4820011731231 contain any precious metals?
No precious metal content.
Does nsn 4820011731231 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820011731231?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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