The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-341-6959, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-341-6959 |
| Primary Part Number | 522 5489360 REV- ITEM 6 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 6.500 INCHES NOMINAL OVERALL IN |
| Flexibility | FLEXIBLE |
| Material Document and Classification | MIL-R-6855, CLASS 2, GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE TUBE |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 3.000 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Material | RUBBER CHLOROPRENE CLASS CR TUBE |
| Nonmetallic Hardness Rating | 40.0 MINIMUM SHORE DUROMETER A AND 50.0 MAXIMUM SHORE DUROMETER A |
| 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 |
|---|---|
| 522 5489360 REV- ITEM 6 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| L8830206 | 5/9 Secondary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
| 522 5489360 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4720-01-341-6959 is a Tubing,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-341-6959 has 1 manufacturer part number on file: 522 5489360 REV- ITEM 6 (Naval Sea Systems Command).
Key specifications for 522 5489360 REV- ITEM 6: Measuring Method and Length: 6.500 INCHES NOMINAL OVERALL IN; Flexibility: FLEXIBLE; Material Document and Classification: MIL-R-6855, CLASS 2, GRADE 40 MIL SPEC SINGLE MATERIAL RESPONSE TUBE; Cross-Sectional Shape Style: ROUND. 8 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.