4730-00-491-6785

Find complete technical information, availability, and procurement data for: 4730-00-491-6785

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4730-00-491-6785
Federal Supply Group
Pipe, Tubing, Hose, and Fittings
National Stock Number
4730-00-491-6785
Item Name Code
22683
Assigment Date
10/02/1970 (55 years ago)

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The connections have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or are unthreaded and designed to accommodate a tube. It may have side inlet(s). It is used as a junction at the intersection of a tube or tube fitting.

flareless (tube) 1st end connection style, double threaded section w/ gasket and locknut sealing (boss) 2nd end connection style, flareless (tube) 3rd end connection style, aircraft application end item identification, 3a all ends thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a all ends
End Item Identification
aircraft application
Connection Style
double threaded section w/ gasket and locknut sealing (boss) 2nd end
Connection Style
flareless (tube) 1st end
Connection Style
flareless (tube) 3rd end
Leg Length
2.242 inches nominal 2nd end
Leg Length
1.649 inches nominal 1st end
Leg Length
1.649 inches nominal 3rd end
Connection Type
threaded external boss 2nd end
Connection Type
threaded external tube 3rd end
Connection Type
threaded external tube 1st end
Thread Quantity Per Inch
12 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Nominal Thread Size
0.750 inches 2nd end
Nominal Thread Size
1.062 inches 1st end
Nominal Thread Size
1.062 inches 3rd end
Seat Angle
12.0 degrees 1st end
Seat Angle
12.0 degrees 3rd end
Nominal Outside Diameter Tube Accommodated
0.750 inches 1st end
Nominal Outside Diameter Tube Accommodated
0.750 inches 3rd end
Material
aluminum alloy 7075 overall
Material Document And Classification
qq-a-367,t73 fed spec single material response overall
Surface Treatment
anodize overall
Surface Treatment Document And Classification
mil-a-8625,ty2,cl 2 mil spec single treatment response inside
Surface Treatment Document And Classification
mil-a-8625,ty2,cl 2 mil spec single treatment response outside
Thread Series Designator
unj 1st end
Thread Series Designator
unj 3rd end
Thread Series Designator
unjf 2nd end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
CVC 4297V-81212 Tube to Boss Tee
CVC 4297W081212 Tube to Boss Tee
CVC4297W081212 Tube to Boss Tee

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4730-00-491-6785?
The FSCG of the NSN 4730-00-491-6785 is 4730
Does the NSN 4730-00-491-6785 have a Schedule B code assigned?
Yes, the Schedule B code is 7609000000
Does NSN 4730-00-491-6785 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4730-00-491-6785 contain precious materials?
Precious metal content is unknown
Does NSN 4730-00-491-6785 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4730-00-491-6785 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Fri, Oct 2, 1970

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