The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-440-2449, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-440-2449 |
| Primary Part Number | 6612-02 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Temp Rating | -20.0 FAHRENHEIT AND 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Minimum Tensile Strength | 148 KILOGRAMS PER SQUARE CENTIMETER KG |
| Material | PLASTIC POLYVINYL CHLORIDE (PVC) TUBE |
| Nonmetallic Hardness Rating | 65.0 NOMINAL 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 |
|---|---|
| 6666 ITEM 6,7,8 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 6612-02 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 6612A-02 | 5/9 Secondary reference Howell Laboratories Inc Dba Howell Laboratories Inc |
| 6666 | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
| 6666 IT6,7,8 | 5/1 Secondary reference Howell Laboratories Inc Dba Howell Laboratories Inc |
NSN 4720-01-440-2449 is a Tubing,nonmetallic, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-440-2449 has 2 manufacturer part numbers on file: 6666 ITEM 6,7,8 (Howell Laboratories Inc Dba Howell Laboratories Inc), 6612-02 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 6612-02: Temp Rating: -20.0 FAHRENHEIT AND 150.0 FAHRENHEIT SINGLE RESPONSE DEGF; Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.750 INCHES NOMINAL IN. 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.