The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-203-8512, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Hydraflow. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-203-8512 |
| Primary Part Number | 41522-16-0720 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES SECOND END |
| Measuring Method and Length | 71.280 INCHES MINIMUM OVERALL AND 72.720 INCHES MAXIMUM OVERALL IN |
| Temp Rating | -55.0 CELSIUS AND 150.0 CELSIUS SINGLE RESPONSE DEGC |
| End Connection Design | ELBOW SECOND END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER BRAIDED SYNTHETIC CORD |
| Connection Type | THREADED INTERNAL HOSE FIRST END |
| Connection Type | THREADED INTERNAL HOSE SECOND END |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.3125 INCHES FIRST END IN |
| Nominal Thread Size | 1.3125 INCHES SECOND END IN |
| Inside Surface Condition | SMOOTH |
| Thread Class | 3B SECOND END |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 500.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | ABRASION RESISTANT |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) SECOND END |
| 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 |
|---|---|
| 41522-16-0720 PRIMARY | Hydraflow (USA) |
| Reference | Meaning |
|---|---|
| 5189502-013 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 4720-01-203-8512 is a Hose Assembly,nonmetallic, manufactured by Hydraflow, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-203-8512 has 1 manufacturer part number on file: 41522-16-0720 (Hydraflow).
Key specifications for 41522-16-0720: Flow Angle: 90.0 DEGREES SECOND END; Measuring Method and Length: 71.280 INCHES MINIMUM OVERALL AND 72.720 INCHES MAXIMUM OVERALL IN; Temp Rating: -55.0 CELSIUS AND 150.0 CELSIUS SINGLE RESPONSE DEGC; End Connection Design: ELBOW SECOND END. 21 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.