The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-563-6503, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-563-6503 |
| Primary Part Number | 531-7487232 ITEM NO 20-1 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 36.000 INCHES NOMINAL OVERALL IN |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Temp Rating | -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 3.000 INCHES IN |
| Connection Style | PLAIN ALL ENDS |
| Layer Composition and Location | 1ST LAYER BRAIDED FIBER OR OUTER LAYER MOLDED PLASTIC |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.810 INCHES NOMINAL IN |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Exterior Color | BLACK |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Inner Conveying Tube Style | PLAIN |
| 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 |
|---|---|
| 5201K76 | Mcmaster-Carr Supply Co (USA) |
| 531-7487232 ITEM NO 20-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5201K26 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 4720-01-563-6503 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-563-6503 has 2 manufacturer part numbers on file: 5201K76 (Mcmaster-Carr Supply Co), 531-7487232 ITEM NO 20-1 (Naval Sea Systems Command).
Key specifications for 531-7487232 ITEM NO 20-1: Measuring Method and Length: 36.000 INCHES NOMINAL OVERALL IN; Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN; Temp Rating: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 3.000 INCHES IN. 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.