The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-139-1791, 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 Tennant Company. Government technical data includes 21 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-139-1791 |
| Primary Part Number | 51809 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — No Item Name Available |
| Manufacturer | Tennant Company |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Minimum Inside Bending Radius | 9.500 INCHES IN |
| Inside Surface Condition | SMOOTH |
| Thread Series Designator | UN FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND 2ND LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC |
| Outer Covering Environmental Protection | OIL RESISTANT AND WEATHERPROOF |
| Inside Diameter | 0.750 INCHES NOMINAL IN |
| Operating Pressure | 2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Seat Angle | 37.0 DEGREES FIRST END |
| Measuring Method and Length | 46.000 INCHES NOMINAL OVERALL IN |
| Burst Test Pressure | 9000.0 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| Nominal Thread Size | 1.062 INCHES FIRST END IN |
| Thread Quantity Per Inch | 12 FIRST END |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Thread Class | 3B FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 51809 | Tennant Company (USA) |
| H1-EC12-12NJ-12NJ-46 | Dayco Industrial (CAN) |
NSN 4720-01-139-1791 is a Hose Assembly,nonmetallic, manufactured by Tennant Company, classified under FSC 4720 (No Item Name Available). Status: active.
NSN 4720-01-139-1791 has 2 cross-referenced part numbers: 51809 (Tennant Company), H1-EC12-12NJ-12NJ-46 (Dayco Industrial).
There are 3 known substitutes for 4720-01-139-1791: 4320-00-679-9976, 3950-00-810-7691, 5962-01-113-2787. Verify interchangeability with system specifications before substitution.
Key specifications for 51809: Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Minimum Inside Bending Radius: 9.500 INCHES IN; Inside Surface Condition: SMOOTH. 21 total characteristics are documented in the Federal Logistics Information System.