The Nut,tube Coupling, cataloged under National Stock Number 4730-00-043-3750, 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 Parker-Hannifin Corp Div Fluid System Connector Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-043-3750 |
| Primary Part Number | 61C-3 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Parker-Hannifin Corp Div Fluid System Connector Division |
| Status | CANCELLED |
| Thread Series | UNF |
| Nominal Tube Outside Diameter | 0.187 INCHES IN |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Nut Style | TUBE COUPLING |
| Smallest Inside Diameter | 0.192 INCHES NOMINAL IN |
| Length to Shoulder | 0.219 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 24 |
| Nut Height | 0.410 INCHES NOMINAL IN |
| Specification/standard Data | 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Material | COPPER ALLOY OVERALL |
| Nondefinitive Spec/std Data | 16 FIGURE |
| Nominal Thread Size | 0.375 INCHES IN |
| Width Across Flats | 0.437 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2B |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| J512 | Society of Automotive Engineers Inc (USA) |
| 61F3-16 | Imperial (USA) |
| 28158 | Thermal Engineering International (usa) Inc. (USA) |
| 476623 | Meggitt Troy Inc (USA) |
| 261X3 | Essex Brass Corporation (USA) |
| 61X3 | Dana Corp Weatherhead Div (USA) |
| 0912064 | Allis-Chalmers Corp (USA) |
| 61C-3 PRIMARY | Parker-Hannifin Corp Div Fluid System Connector Division (USA) |
| MS39176-2 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 70315-2 | Little Giant Crane and Shovel Inc (USA) |
| 120487 | General Motors Llc Dba General Motors Llc (USA) |
| 120487 | General Motors Corp (USA) |
| RL984A | Lauson Division of Tecumseh Products Co (USA) |
| 3 060110B | Society of Automotive Engineers Inc (USA) |
| 3 060110B PRIMARY | Sae International Dba Sae International (USA) |
| 912064 | Allis-Chalmers Corp (USA) |
| 61-F-03 | Imperial (USA) |
| 61F03 | Clark Equipment Co (USA) |
| A7911 | Celtrac Corp (USA) |
| 28158 | Thermal Engineering International Usa Inc (USA) |
NSN 4730-00-043-3750 is a Nut,tube Coupling, manufactured by Parker-Hannifin Corp Div Fluid System Connector Division, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-043-3750 has 23 cross-referenced part numbers: J512 (Society of Automotive Engineers Inc), 61F3-16 (Imperial), 28158 (Thermal Engineering International (usa) Inc.), 476623 (Meggitt Troy Inc), 261X3 (Essex Brass Corporation) and 18 more.
There are 8 known substitutes for 4730-00-043-3750: 3110-00-100-3560, 4320-00-215-1422, 5360-00-370-5917 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 61C-3: Thread Series: UNF; Nominal Tube Outside Diameter: 0.187 INCHES IN; Seat Angle: 45.00 DEGREES NOMINAL; Nut Style: TUBE COUPLING. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-043-3750 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.