The Tube,metallic, cataloged under National Stock Number 4710-01-331-6557, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-331-6557 |
| Primary Part Number | 07-350-210 |
| Item Name | Tube,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| Status | ACTIVE |
| Measuring Method and Length | 30.500 INCHES NOMINAL SPECIFIC IN |
| First End Style | PLAIN |
| Diameter | 0.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | PLAIN ROUND |
| Wall Thickness | 0.049 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Material | COPPER OR NICKEL ALLOY |
| Construction | SEAMLESS |
| 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 |
|---|---|
| 07-350-210 PRIMARY | Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA) |
| Reference | Meaning |
|---|---|
| MILT22214TYIICL | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4710-01-331-6557 is a Tube,metallic, manufactured by Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-331-6557 has 1 manufacturer part number on file: 07-350-210 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil).
Key specifications for 07-350-210: Measuring Method and Length: 30.500 INCHES NOMINAL SPECIFIC IN; First End Style: PLAIN; Diameter: 0.750 INCHES NOMINAL IN; Cross-Sectional Shape Style: PLAIN 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.