The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-260-2571, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-260-2571 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 12.500 INCHES NOMINAL WORKING IN |
| Minimum Inside Bending Radius | 4.625 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER BRAIDED COTTON CORD AND 2ND LAYER BRAIDED CORROSION RESISTANT STEEL WIRE AND OUTER LAYER RUBBER IMPREGNATED BRAIDED COTTON CORD |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.766 INCHES NOMINAL IN |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Diameter | 0.406 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Hydrostatic Test Pressure | 4000.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 8000.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | UNEF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 636-3958-001 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 636-3958 | D/9 Drawing number reference only U.S. Government activity |
NSN 4720-01-260-2571 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-260-2571: Measuring Method and Length: 12.500 INCHES NOMINAL WORKING IN; Minimum Inside Bending Radius: 4.625 INCHES IN; Connection Style: SWIVEL NUT FLARE FIRST END; End Connection Design: STRAIGHT FIRST END. 19 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.