The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-657-2000, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-657-2000 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 21.875 INCHES NOMINAL OVERALL IN |
| Connection Style | SWIVEL NUT FLARE ALL ENDS |
| End Connection Design | STRAIGHT ALL ENDS |
| Connection Type | THREADED INTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES ALL ENDS IN |
| Cross-Sectional Shape Style | ROUND |
| End Fitting Component and Material | COMPLETE FITTING STEEL CORROSION RESISTING 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 |
| Reference | Meaning |
|---|---|
| MS8005J217A | 2/2 Government specification standardization U.S. Government activity |
| NMM100021 FIND NO 18 | 5/1 Secondary reference Bird-Johnson Propeller Company, Llc |
| MIL-DTL-25579 | 4/1 Identification reference U.S. Government activity |
NSN 4720-01-657-2000 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-657-2000: Measuring Method and Length: 21.875 INCHES NOMINAL OVERALL IN; Connection Style: SWIVEL NUT FLARE ALL ENDS; End Connection Design: STRAIGHT ALL ENDS; Connection Type: THREADED INTERNAL TUBE ALL ENDS. 7 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.