The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-121-0642, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-121-0642 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 20.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Thickness | 0.937 INCHES NOMINAL SECOND END IN |
| Flange Thickness | 1.062 INCHES NOMINAL FIRST END IN |
| Connection Style | PLAIN FIRST END |
| Connection Style | PLAIN SECOND END |
| Flange Outside Diameter | 9.000 INCHES NOMINAL SECOND END IN |
| Flange Outside Diameter | 11.000 INCHES NOMINAL FIRST END IN |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE |
| Connection Type | PLAIN FACE FLANGE FIRST END |
| Connection Type | PLAIN FACE FLANGE SECOND END |
| Bolt Hole Diameter | 0.625 INCHES NOMINAL SECOND END IN |
| Bolt Hole Diameter | 0.750 INCHES NOMINAL FIRST END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Exterior Color | NATURAL |
| Inside Diameter | 6.000 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 SECOND END |
| Bolt Hole Quantity | 8 FIRST END |
| Bolt Circle Diameter | 7.500 INCHES NOMINAL SECOND END IN |
| Bolt Circle Diameter | 9.500 INCHES NOMINAL FIRST END IN |
| Burst Test Pressure | 250.0 POUNDS PER SQUARE INCH LBS |
| Flange Style | ROUND W / BOLT HOLES FIRST END |
| Flange Style | ROUND W / BOLT HOLES SECOND END |
| End Flange Construction | SOLID SECOND END |
| End Flange Construction | SOLID 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 |
|---|---|
| 49-6956-FLX | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-121-0642 is a Hose Assembly,metallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-121-0642: Measuring Method and Length: 20.000 INCHES NOMINAL OVERALL IN; Temp Rating: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF; Flange Thickness: 0.937 INCHES NOMINAL SECOND END IN; Flange Thickness: 1.062 INCHES NOMINAL FIRST END IN. 28 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.