The Tubing,glass, cataloged under National Stock Number 9340-01-021-7593, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Ernst, John C & Co, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 9340-01-021-7593 |
| Primary Part Number | 505 5/8" OD X 56-3/4" LONG |
| Item Name | Tubing,glass |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Ernst, John C & Co, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | TUBING |
| Wall Thickness | 0.093 INCHES NOMINAL IN |
| Environmental Protection | HIGH TEMPERATURE RESISTANT |
| Bore Diameter | 0.438 INCHES NOMINAL IN |
| Material | GLASS BOROSILICATE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY LENGTH AND OD |
| 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 |
|---|---|
| 505 5/8" OD X 56-3/4" LONG | Ernst, John C & Co, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 403-04 PIECE 4 | 5/9 Secondary reference Ernst, John C & Co, Inc. |
| 505 | 3/1 Design control — primary reference Ernst, John C & Co, Inc. |
NSN 9340-01-021-7593 is a Tubing,glass, manufactured by Ernst, John C & Co, Inc., classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-021-7593 has 1 manufacturer part number on file: 505 5/8" OD X 56-3/4" LONG (Ernst, John C & Co, Inc.).
Key specifications for 505 5/8" OD X 56-3/4" LONG: Overall Diameter: 0.625 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: TUBING; Overall Length: 56.750 INCHES NOMINAL IN. 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.