The Tubing,nonmetallic, cataloged under National Stock Number 4720-01-433-7121, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Sea-Tech Systems, Inc. Dba Sea Tech Systems. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-433-7121 |
| Primary Part Number | 65-3900 |
| Item Name | Tubing,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Sea-Tech Systems, Inc. Dba Sea Tech Systems |
| Status | ACTIVE |
| Measuring Method and Length | 6.0 FEET NOMINAL OVERALL FT |
| Flexibility | FLEXIBLE |
| Cross-Sectional Shape Style | ROUND |
| Inside Diameter | 1.500 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Material | PLASTIC TUBE |
| 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 |
|---|---|
| 65-3900 PRIMARY | Sea-Tech Systems, Inc. Dba Sea Tech Systems (USA) |
| Reference | Meaning |
|---|---|
| STSPOCT1010 | D/9 Drawing number reference only Sea-Tech Systems, Inc. Dba Sea Tech Systems |
NSN 4720-01-433-7121 is a Tubing,nonmetallic, manufactured by Sea-Tech Systems, Inc. Dba Sea Tech Systems, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-433-7121 has 1 manufacturer part number on file: 65-3900 (Sea-Tech Systems, Inc. Dba Sea Tech Systems).
Key specifications for 65-3900: Measuring Method and Length: 6.0 FEET NOMINAL OVERALL FT; Flexibility: FLEXIBLE; Cross-Sectional Shape Style: ROUND; Inside Diameter: 1.500 INCHES NOMINAL IN. 6 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.