The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-657-1259, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-657-1259 |
| Primary Part Number | 3844171 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES SECOND END |
| Measuring Method and Length | 19.0 INCHES NOMINAL OVERALL IN |
| Temp Rating | -58.0 FAHRENHEIT AND 302.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 1.5 INCHES IN |
| Connection Style | SWIVEL NUT FLARE ALL ENDS |
| End Connection Design | ELBOW SECOND END |
| End Connection Design | STRAIGHT FIRST END |
| Connection Type | THREADED INTERNAL TUBE ALL ENDS |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.74 INCHES NOMINAL IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| End Fitting Component and Material | COMPLETE FITTING STEEL CORROSION RESISTING ALL ENDS |
| Nominal Thread Size | 0.75 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Inside Diameter | 0.4062 INCHES NOMINAL IN |
| Media for Which Designed | AIR AND FUEL, DIESEL AND HYDRAULIC FLUID AND OIL AND WATER-GLYCOL SINGLE RESPONSE |
| Burst Test Pressure | 2000.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Outer Covering Environmental Protection | ABRASION RESISTANT |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3844171 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| P2936839080808-19.0 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-657-1259 is a Hose Assembly,nonmetallic, manufactured by Oshkosh Defense Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-657-1259 has 1 manufacturer part number on file: 3844171 (Oshkosh Defense Llc).
Key specifications for 3844171: Flow Angle: 90.0 DEGREES SECOND END; Measuring Method and Length: 19.0 INCHES NOMINAL OVERALL IN; Temp Rating: -58.0 FAHRENHEIT AND 302.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 1.5 INCHES IN. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.