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Tube Coupling Nut NSN 4730-00-821-3878

Item Description

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

NSN 4730-00-821-3878 NSN: 4730-00-821-3878

Features and Characteristics

Thread Class
3b
Thread Direction
Right-hand
Fabrication Method
Any acceptable
Nut Style
Tube coupling
Nut Height
Between 0.600 inches and 0.620 inches
Width Across Flats
Between 0.553 inches and 0.564 inches
Length To Shoulder
Between 0.513 inches and 0.523 inches
Smallest Inside Diameter
Between 0.388 inches and 0.394 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Tube Outside Diameter
0.250 inches
Material
Steel comp 303 or steel comp 303se or steel comp 303 plus x
Material Specification
Ams 5640 assn standard all material responses
Surface Treatment
Passivate
FSC
4730 Railing Fittings Lubrication Tube Pipe Hose
NIIN
008213878
NSN
4730008213878

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
R197P04
Cage Code:
07482
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318160000
  • NAICS: 332722
  • SITC: 69421
  • Description: Nuts of iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 4730-00-821-3878
What are the manufacturers of nsn 4730008213878?
Does this nsn 4730008213878 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 4730008213878
An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. excludes nut (1), tube coupling, reducing; and nut (1), union.
Does nsn 4730008213878 contain any precious metals?
Precious metal content is unknown.
Does nsn 4730008213878 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 4730008213878?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
03859
FIIG:
A021A0
App. Key:
CX
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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