Tube Tee
21T187-4-4D
(NSN) National Stock Number
4730-00-127-8746
Federal Supply Classification
4730 Hose, Pipe, Tube, Lubrication and Railing Fittings
Item Name Code
03809
Schedule B Code
7609000000
Summary
3a 2nd end thread class, 3a 1st end thread class, 3b 3rd end thread class, 135.0 deg celsius single response maximum operating temp, aircraft application end item identification, flareless (tube) 2nd end connection style
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| E | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | AX |
Identification
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.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 03809 | A080B0 | - | 1 |
Specifications
Thread Class
3a 2nd end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Class
3a 1st end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Class
3b 3rd end
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Maximum Operating Temp
135.0 deg celsius single response
Details
The maximum temperature at which the item is rated to operate for an extended period of time.End Item Identification
aircraft application
Details
The national stock number or the identification information of the end equipment for which the item is a part.Connection Style
flareless (tube) 2nd end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Connection Style
flareless (tube) 1st end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Connection Style
swivel nut w/ loose or integral clinch sleeve (tube) 3rd end
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Leg Length
0.961 inches minimum 1st end and 1.006 inches maximum 1st end
Details
A measurement of the longest dimension of the leg,in distinction from width.Leg Length
0.961 inches minimum 2nd end and 1.006 inches maximum 2nd end
Details
A measurement of the longest dimension of the leg,in distinction from width.Leg Length
0.961 inches minimum 3rd end and 1.006 inches maximum 3rd end
Details
A measurement of the longest dimension of the leg,in distinction from width.Connection Type
threaded external tube 1st end
Details
Indicates the type of connection/s/.Connection Type
threaded external tube 2nd end
Details
Indicates the type of connection/s/.Connection Type
threaded internal tube 3rd end
Details
Indicates the type of connection/s/.Maximum Operating Pressure
3000.0 pounds per square inch single response
Details
The maximum pressure at which the item is rated for operation.Nominal Thread Size
0.438 inches all ends
Details
A designation that is used for the purpose of general identification of the thread.Seat Angle
12.0 degrees all ends
Details
The angle of the end surface upon which the mated surface seats.Nominal Outside Diameter Tube Accommodated
0.250 inches all ends
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Material
aluminum alloy 7075 overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
qq-a-367,t73 fed spec single material response overall
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Media For Which Designed
aeronautical fluid single response
Details
The type of media for which the item is designed.Surface Treatment
anodize overall
Details
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.Surface Treatment Document And Classification
mil-a-8625,type 2,class 2 mil spec single treatment response overall
Details
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.Thread Series Designator
unjf all ends
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| 21T187-4-4D | 76823 | A | - | 5 | 9 | - | AX |
| 21T187-4-4D | 14798 | E | - | 5 | 9 | - | AX |
| 21T187-4-4D | 92003 | 6 | - | 5 | 9 | - | AX |
| 21T187-4-4D | 00624 | E | - | 3 | 2 | - | AX |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 30000 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 576 | Z | 9 |
Certified Supplier
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Manufacturer
SPS TECHNOLOGIES, LLC DBA AIRDROME PRECISION COMPONENTS
CAGE: 01673
GARDENA
, CA
, 90248-1719
UNITED STATES
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FAQs
Frequently asked questions for NSN 4730-00-127-8746
What is the NIIN of the NSN 4730-00-127-8746?
The National Item Identification Number (NIIN) of the NSN 4730-00-127-8746 is 00-127-8746
When the NSN 4730-00-127-8746 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Wed, Jan 10, 1973
Does the NSN 4730-00-127-8746 contain any precious metals?
Type/content is unknown
Does the NSN 4730-00-127-8746 contain any hazardous material?
No data in HMIRS
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