The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-391-3879, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Hydraflow. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-391-3879 |
| Primary Part Number | 55104E0465A |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Wall Thickness | 0.310 INCHES NOMINAL IN |
| Inside Diameter | 0.500 INCHES NOMINAL FIRST END IN |
| Measuring Method and Length | 46.625 INCHES NOMINAL OVERALL IN |
| Thread Series Designator | UNF BOTH ENDS |
| Thread Quantity Per Inch | 16 BOTH ENDS |
| Connection Type | THREADED BOTH ENDS |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Material Document and Classification | ASTM A313, TYPE 302 ASSN STD SINGLE MATERIAL RESPONSE REINFORCING WIRE |
| Coupling Style | THREADED INTERNAL BOTH ENDS |
| Nominal Thread Size | 0.750 INCHES BOTH ENDS IN |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | PLASTIC POLYAMIDE NYLON COVER |
| Style Designator | SLEEVE SECTION |
| Material | PLASTIC POLYAMIDE NYLON FOURTH PLY |
| Material | RUBBER SILICONE CLASS Q LINER |
| Minimum Inside Bending Radius | 1.500 INCHES IN |
| Material | STEEL CORROSION RESISTING THIRD PLY |
| Material Document and Classification | ASTM A313, TYPE 302 ASSN STD SINGLE MATERIAL RESPONSE THIRD PLY |
| Cross-Sectional Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 55104E0465A PRIMARY | Hydraflow (USA) |
| 7D0311E0465A | The Boeing Company (USA) |
| 55104 | Hydraflow (USA) |
NSN 4720-01-391-3879 is a Hose Assembly,air Breathing, manufactured by Hydraflow, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-01-391-3879 has 3 cross-referenced part numbers: 55104E0465A (Hydraflow), 7D0311E0465A (The Boeing Company), 55104 (Hydraflow).
There are 12 known substitutes for 4720-01-391-3879: 5120-00-016-7582, 5330-00-251-3231, 5360-00-260-6666 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55104E0465A: Wall Thickness: 0.310 INCHES NOMINAL IN; Inside Diameter: 0.500 INCHES NOMINAL FIRST END IN; Measuring Method and Length: 46.625 INCHES NOMINAL OVERALL IN; Thread Series Designator: UNF BOTH ENDS. 21 total characteristics are documented in the Federal Logistics Information System.