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Valve Seat NSN 4820-01-440-3994

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 4820-01-440-3994 NSN: 4820-01-440-3994

Features and Characteristics

Thread Class
2a single threaded portion
Thread Length
0.745 inches single threaded portion
Overall Height
0.875 inches
Body Inside Diameter
17.880 inches
End Application
Navy weapons system code, ja, nimitz class cvn
Thready Qty Per Inch (tpi)
12 single threaded portion
Thread Size
19.625 inches single threaded portion
Special Features
W/8 0.280 in. Holes drilled 0.310 in. Dp, 1 side, equally spaced around perimeter
Material
Nickel alloy
Style Designator
Plain
Thread Series Designator
Un single threaded portion
FSC
4820 Nonpowered Valves
NIIN
014403994
NSN
4820014403994

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
TDCV-016095-20 PIECE 3
Cage Code:
31609
Status:
A
MSDS:
Part Number:
TDCV-016095
Cage Code:
31609
Status:
A
MSDS:
Part Number:
TDCV-016095-20-03
Cage Code:
31609
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 4820-01-440-3994
What are the manufacturers of nsn 4820014403994?
Does this nsn 4820014403994 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4820014403994
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 4820014403994 contain any precious metals?
No precious metal content.
Does nsn 4820014403994 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4820014403994?
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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