PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91729203Reducer,tube

Thales Sa · NSN 4730-00-675-9217 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-675-9217 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-675-9217. Primary manufacturer part number: 91729203.
Features
  • Reducer,tube — FSC 4730
  • Seat Angle: 37.0 DEGREES FIRST END
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Thread Class: 2A SECOND END A
  • Connection Style: FLARELESS (TUBE) SECOND END
  • Nominal Outside Diameter Tube Accommodated: 0.750 INCHES FIRST END IN
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES SECOND END IN
  • Material Document and Classification: FED STD 66, COMP 12L14 FED STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 12l14 Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-675-9217, 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 Thales Sa. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-675-9217
Primary Part Number91729203
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThales Sa
StatusCANCELLED
Seat Angle37.0 DEGREES FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Thread Class2A SECOND END A
Connection StyleFLARELESS (TUBE) SECOND END
Nominal Outside Diameter Tube Accommodated0.750 INCHES FIRST END IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES SECOND END IN
Material Document and ClassificationFED STD 66, COMP 12L14 FED STD SINGLE MATERIAL RESPONSE OVERALL
Seat Angle12.0 DEGREES SECOND END
Surface Treatment Document and ClassificationJ514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Reducer TypeCONCENTRIC
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Furnished Items and Quantity1 TUBE COUPLING NUT W/SLEEVE
Nominal Thread Size0.562 INCHES SECOND END IN
MaterialSTEEL COMP 12L14 OVERALL
Specification/standard Data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81349-MIL-F-18866 GOVERNMENT SPECIFICATION
Thread Series DesignatorUNF ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std Data15 FIGURE
Nominal Overall Length1.090 INCHES IN
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Thread Class2B FIRST END
Nominal Thread Size1.062 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5930-00-224-55697460330G7 INTERCHANGEABLE
Switch,interlock
Lockheed Martin Corporation Div Rms
5305-00-619-8570 INTERCHANGEABLE
Screw,shoulder
4330-01-121-1811A21-8189 INTERCHANGEABLE
Filter Element,fluid
Research Products Corp
Cross-Reference Index
Part NumberManufacturer
91729203 Thales Sa (FRA)
87024A1449 Marine Corps (USA)
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
12-6TRTX-S-12-BTXS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
J514 Sae International Dba Sae International (USA)
24067 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
12-6TRBTXS Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
MIL-F-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TRBTXS12-6 Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
12-6 070123CA Sae International Dba Sae International (USA)
J514 Society of Automotive Engineers Inc (USA)
12-6 070123CA Society of Automotive Engineers Inc (USA)
12-6TRBTXS Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
12-6TRBTXS Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA)
MS51534A12-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5930-00-224-5569INTERCHANGEABLE
SWITCH,INTERLOCK
7460330G7
5305-00-619-8570INTERCHANGEABLE
SCREW,SHOULDER
4330-01-121-1811INTERCHANGEABLE
FILTER ELEMENT,FLUID
A21-8189

Frequently Asked Questions

What is NSN 4730-00-675-9217?

NSN 4730-00-675-9217 is a Reducer,tube, manufactured by Thales Sa, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-675-9217?

NSN 4730-00-675-9217 has 15 cross-referenced part numbers: 91729203 (Thales Sa), 87024A1449 (Marine Corps), MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 12-6TRTX-S-12-BTXS (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), J514 (Sae International Dba Sae International) and 10 more.

What NSN replaces 4730-00-675-9217?

There are 3 known substitutes for 4730-00-675-9217: 5930-00-224-5569, 5305-00-619-8570, 4330-01-121-1811. Verify interchangeability with system specifications before substitution.

What are the specifications of 91729203?

Key specifications for 91729203: Seat Angle: 37.0 DEGREES FIRST END; Connection Type: THREADED INTERNAL TUBE FIRST END; Thread Class: 2A SECOND END A; Connection Style: FLARELESS (TUBE) SECOND END. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-675-9217 still in active supply?

NSN 4730-00-675-9217 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com