Product Details | TUBE TEE

4730-00-521-8389 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.

Part Alternates: AS4304K04, KC109C4, KC109K4, 4730-00-521-8389, 00-521-8389, 4730005218389, 005218389

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG) NSN Assign. NIIN
47 19 AUG 1974 00-521-8389

Demand History | NSN 4730-00-521-8389

Part Number Request Date QTY Origin
AS4304K04 2021-04-22 1 US

Cross Reference | NSN 4730-00-521-8389

Part Number Cage Code Manufacturer
AS4304K04 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
KC109C4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA
KC109K4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA

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Technical Data | NSN 4730-00-521-8389

Characteristic Specifications
MATERIAL STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE INSIDE PASSIVATE OUTSIDE
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END THREADED INTERNAL TUBE 3RD END
CONNECTION STYLE B64 FLARED 1ST END B3 SWIVEL NUT, FLARE 3RD END
SEAT ANGLE 37.0 DEGREES 1ST END 39.5 DEGREES 3RD END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES 1ST END 0.250 INCHES 3RD END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 3RD END
NOMINAL THREAD SIZE 0.438 INCHES 1ST END 0.438 INCHES 3RD END
THREAD CLASS 3A 1ST END 3B 3RD END
LEG LENGTH 0.843 INCHES MINIMUM AND 0.906 INCHES MAXIMUM 1ST END 1.000 INCHES NOMINAL 3RD END
SPECIAL FEATURES MACHINED GROOVE IN FLARED ENDS TO ACCOMMODATE SEAL RINGS PER KC103

Restrictions/Controls & Freight Information | NSN 4730-00-521-8389

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 051140 HOSE:NOI TUBING
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 736 unknown
Originating Activity Code 86 NASA Kennedy Space Center
Kennedy Space Center, FL 32899
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable