The Nut,tube Coupling, cataloged under National Stock Number 4730-00-074-9643, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-074-9643 |
| Primary Part Number | 475125 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Material | STEEL COMP 347 OVERALL |
| Nut Height | 0.920 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Length to Shoulder | 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Smallest Inside Diameter | 0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Nut Style | TUBE COUPLING |
| Nominal Thread Size | 0.750 INCHES IN |
| Nominal Tube Outside Diameter | 0.500 INCHES IN |
| Width Across Flats | 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Thread Class | 3B |
| Thread Series | UNF |
| Thread Quantity Per Inch | 16 |
| Material Document and Classification | AMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 475125 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 475125 | Turbo Power & Marine System Inc Sub of United Technologies Corp (USA) |
| 475125 | Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation (USA) |
| 475125 | Simon Paul Boiler and Welding Co (USA) |
NSN 4730-00-074-9643 is a Nut,tube Coupling, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-074-9643 has 4 cross-referenced part numbers: 475125 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 475125 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 475125 (Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation), 475125 (Simon Paul Boiler and Welding Co).
There are 3 known substitutes for 4730-00-074-9643: 5360-01-045-9992, 2530-01-344-5879, 4730-01-669-4811. Verify interchangeability with system specifications before substitution.
Key specifications for 475125: Thread Direction: RIGHT-HAND; Material: STEEL COMP 347 OVERALL; Nut Height: 0.920 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Length to Shoulder: 0.760 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN. 16 total characteristics are documented in the Federal Logistics Information System.