The Hose,air Duct, cataloged under National Stock Number 4720-00-217-6818, 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 Hiller Aircraft Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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 | 4720-00-217-6818 |
| Primary Part Number | 8B783057-13 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Hiller Aircraft Corporation |
| Status | ACTIVE |
| Connection Type | SOFT BOTH ENDS |
| Inside Diameter | 0.750 INCHES NOMINAL FIRST END IN |
| Measuring Method and Length | 5.000 INCHES NOMINAL OVERALL IN |
| Operating Pressure | 5.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | FIBERGLASS AND RUBBER SILICONE CLASS Q SECOND PLY |
| Cross-Sectional Shape Style | ROUND |
| End Inside Diameter | 0.750 INCHES NOMINAL BOTH ENDS IN |
| Material | FIBERGLASS AND RUBBER SILICONE CLASS Q REINFORCING CORD |
| Connection Style | ROUND BOTH ENDS |
| Material | FIBERGLASS AND RUBBER SILICONE CLASS Q FIRST PLY |
| End Overall Length | 1.500 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8B783057 | Hiller Aircraft Corporation (USA) |
| 8B783057-13 PRIMARY | Hiller Aircraft Corporation (USA) |
| 3-1664-6-20-6 PRIMARY | Arrowhead Products Corp (USA) |
| 3-1664 | Arrowhead Products Corp (USA) |
NSN 4720-00-217-6818 is a Hose,air Duct, manufactured by Hiller Aircraft Corporation, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-00-217-6818 has 4 cross-referenced part numbers: 8B783057 (Hiller Aircraft Corporation), 8B783057-13 (Hiller Aircraft Corporation), 3-1664-6-20-6 (Arrowhead Products Corp), 3-1664 (Arrowhead Products Corp).
There are 12 known substitutes for 4720-00-217-6818: 5940-00-107-1481, 5110-00-156-0063, 4720-00-217-6815 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8B783057-13: Connection Type: SOFT BOTH ENDS; Inside Diameter: 0.750 INCHES NOMINAL FIRST END IN; Measuring Method and Length: 5.000 INCHES NOMINAL OVERALL IN; Operating Pressure: 5.000 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 13 total characteristics are documented in the Federal Logistics Information System.