The Hose,air Breathing, cataloged under National Stock Number 4720-00-781-4703, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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 | 4720-00-781-4703 |
| Primary Part Number | 266AS100-2 |
| Item Name | Hose,air Breathing |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Wall Thickness | 0.098 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Measuring Method and Length | 72.000 INCHES NOMINAL OVERALL IN |
| Connection Type | FLANGE BOTH ENDS |
| Inside Diameter | 0.625 INCHES NOMINAL FIRST END IN |
| Hose Weight | 1.666 OUNCES PER LINEAR FOOT OZ |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A80910-3 | R.e. Darling Co., Inc. (USA) |
| 266AS100-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| MILH23927SIZEB | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| REDAR-A80910-03 | R.e. Darling Co., Inc. (USA) |
| MIL-H-81581/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| WS4127-2-72 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4720-00-781-4703 is a Hose,air Breathing, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-00-781-4703 has 6 cross-referenced part numbers: A80910-3 (R.e. Darling Co., Inc.), 266AS100-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), MILH23927SIZEB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), REDAR-A80910-03 (R.e. Darling Co., Inc.), MIL-H-81581/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.
There is 1 known substitute for 4720-00-781-4703: 4720-00-045-8090. Verify interchangeability with system specifications before substitution.
Key specifications for 266AS100-2: Wall Thickness: 0.098 INCHES NOMINAL IN; Cross-Sectional Shape Style: ROUND; Operating Pressure: 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 9 total characteristics are documented in the Federal Logistics Information System.