The Tubing,glass, cataloged under National Stock Number 9340-00-779-0621, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-779-0621 |
| Item Name | Tubing,glass |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Status | ACTIVE |
| Overall Diameter | 0.750 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | TUBING |
| Wall Thickness | 0.109 INCHES NOMINAL IN |
| Environmental Protection | HIGH TEMPERATURE RESISTANT |
| Bore Diameter | 0.532 INCHES NOMINAL IN |
| Material | GLASS BOROSILICATE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY OVERALL @LENGTH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| PYREXHIGHPRESSURE | 3/1 Design control — primary reference Corning Glass Works |
| AM206-24 | 5/2 Secondary reference U.S. Government activity |
NSN 9340-00-779-0621 is a Tubing,glass, classified under FSC 9340, Glass Fabricated Materials. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 9340-00-894-8452, 9340-00-904-6643. Verify interchangeability with system specifications before substitution.
Key specifications for 9340-00-779-0621: Overall Diameter: 0.750 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: TUBING; Overall Length: 13.000 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.