PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12R6BX-STee,tube

Air Dry Co of America, Llc · NSN 4730-01-104-7503 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-104-7503 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-104-7503. Primary manufacturer part number: 12R6BX-S.
Features
  • Tee,tube — FSC 4730
  • Thread Series Designator: UN ALL ENDS
  • Leg Length: 1.660 INCHES NOMINAL SECOND END IN
  • Furnished Items and Quantity: 2 TUBE COUPLING NUT W/SLEEVE
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Specification/standard Data: 96906-MS51523 GOVERNMENT STANDARD
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS IN
  • Material: STEEL OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Tee,tube, cataloged under National Stock Number 4730-01-104-7503, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Air Dry Co of America, Llc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-104-7503
Primary Part Number12R6BX-S
Item NameTee,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAir Dry Co of America, Llc
StatusACTIVE
Thread Series DesignatorUN ALL ENDS
Leg Length1.660 INCHES NOMINAL SECOND END IN
Furnished Items and Quantity2 TUBE COUPLING NUT W/SLEEVE
Connection TypeTHREADED INTERNAL TUBE FIRST END
Specification/standard Data96906-MS51523 GOVERNMENT STANDARD
Nominal Outside Diameter Tube Accommodated0.750 INCHES ALL ENDS IN
MaterialSTEEL OVERALL
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Connection StyleFLARED (TUBE) SECOND END
Connection TypeTHREADED EXTERNAL TUBE THIRD END
Surface TreatmentCADMIUM OVERALL
Thread Quantity Per Inch12 ALL ENDS
Leg Length1.750 INCHES NOMINAL FIRST END IN
Leg Length1.660 INCHES NOMINAL THIRD END IN
Thread Class2B FIRST END
Thread Class2A THIRD END A
Nominal Thread Size1.062 INCHES ALL ENDS IN
Seat Angle37.0 DEGREES ALL ENDS
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Connection StyleFLARED (TUBE) THIRD END
Thread Class2A SECOND END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-738-755812R6X-S INTERCHANGEABLE
Tee,tube
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Cross-Reference Index
Part NumberManufacturer
12R6BX-S Air Dry Co of America, Llc (USA)
MS51523A12 Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA)
MS51523A12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51523B12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12R6BXS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
12R6BXS Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
C5706X12 Danfoss Power Solutions II, Llc (USA)
5224-6602-12 Cemen Tech, Inc. (USA)
6KP104 Oshkosh Corp (USA)
Related Parts
4730-00-738-7558INTERCHANGEABLE
TEE,TUBE
12R6X-S

Frequently Asked Questions

What is NSN 4730-01-104-7503?

NSN 4730-01-104-7503 is a Tee,tube, manufactured by Air Dry Co of America, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-104-7503?

NSN 4730-01-104-7503 has 10 cross-referenced part numbers: 12R6BX-S (Air Dry Co of America, Llc), MS51523A12 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), MS51523A12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS51523B12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 5 more.

What NSN replaces 4730-01-104-7503?

There is 1 known substitute for 4730-01-104-7503: 4730-00-738-7558. Verify interchangeability with system specifications before substitution.

What are the specifications of 12R6BX-S?

Key specifications for 12R6BX-S: Thread Series Designator: UN ALL ENDS; Leg Length: 1.660 INCHES NOMINAL SECOND END IN; Furnished Items and Quantity: 2 TUBE COUPLING NUT W/SLEEVE; Connection Type: THREADED INTERNAL TUBE FIRST END. 21 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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