The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-411-4017, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-411-4017 |
| Primary Part Number | 6689813 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | FLARED FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Thread Class | 3A FIRST END A |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Inner Conveying Tube Style | INTERLOCKED UNPACKED |
| 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 |
|---|---|
| 6689813 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| C63625-1 | 5/1 Secondary reference Danfoss Power Solutions II, Llc |
NSN 4720-01-411-4017 is a Hose Assembly,metallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-411-4017 has 1 manufacturer part number on file: 6689813 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3950-01-700-4153. Verify interchangeability with system specifications before substitution.
Key specifications for 6689813: Connection Style: FLARED FIRST END; End Connection Design: STRAIGHT FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Cross-Sectional Shape Style: ROUND. 10 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.