The Nut,tube Coupling, cataloged under National Stock Number 4730-00-031-6334, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-031-6334 |
| Primary Part Number | 193581 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Nominal Tube Outside Diameter | 1.250 INCHES IN |
| Material Document and Classification | AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Length to Shoulder | 1.147 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Thread Quantity Per Inch | 12 |
| Thread Series | UN |
| Nominal Thread Size | 1.750 INCHES IN |
| Smallest Inside Diameter | 1.370 INCHES NOMINAL IN |
| Nut Height | 1.710 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Width Across Flats | 2.002 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4730-00-031-6334 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 4730-00-031-6334 has 2 cross-referenced part numbers: 193581 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 193581 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There is 1 known substitute for 4730-00-031-6334: 2530-00-435-4337. Verify interchangeability with system specifications before substitution.
Key specifications for 193581: Seat Angle: 45.00 DEGREES NOMINAL; Nominal Tube Outside Diameter: 1.250 INCHES IN; Material Document and Classification: AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Length to Shoulder: 1.147 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.