The Tube,metallic, cataloged under National Stock Number 4710-01-457-6919, 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 Bb&g Enterprises Inc Dba Specialized Metals. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-457-6919 |
| Primary Part Number | ASTM-B-221 20FTX4IN SQX0.25IN |
| Item Name | Tube,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Bb&g Enterprises Inc Dba Specialized Metals |
| Status | ACTIVE |
| Measuring Method and Length | 240.000 INCHES NOMINAL RANDOM IN |
| First End Style | PLAIN |
| Heat Treatment | QUENCHED AND TEMPERED |
| Material Document and Classification | T6 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | SQUARE/RECTANGULAR |
| Wall Thickness | 0.250 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Height | 4.000 INCHES NOMINAL IN |
| Width | 4.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| ASTM-B-221 20FTX4IN SQX0.25IN PRIMARY | Bb&g Enterprises Inc Dba Specialized Metals (USA) |
| ASTM-B-221 20FTX4IN SQX0.25IN PRIMARY | Hi-Tech Metals, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ASTM-B-221 TYPE 6061-T6 | 5/1 Secondary reference U.S. Government activity |
NSN 4710-01-457-6919 is a Tube,metallic, manufactured by Bb&g Enterprises Inc Dba Specialized Metals, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-457-6919 has 2 manufacturer part numbers on file: ASTM-B-221 20FTX4IN SQX0.25IN (Bb&g Enterprises Inc Dba Specialized Metals), ASTM-B-221 20FTX4IN SQX0.25IN (Hi-Tech Metals, Inc.).
Key specifications for ASTM-B-221 20FTX4IN SQX0.25IN: Measuring Method and Length: 240.000 INCHES NOMINAL RANDOM IN; First End Style: PLAIN; Heat Treatment: QUENCHED AND TEMPERED; Material Document and Classification: T6 ASSN STD SINGLE MATERIAL RESPONSE. 11 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.