The Window,observation, cataloged under National Stock Number 9340-01-259-0756, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Star Manufacturing International Inc. Dba Lang Manufacturing Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-01-259-0756 |
| Primary Part Number | 71301-04 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Star Manufacturing International Inc. Dba Lang Manufacturing Company |
| Status | ACTIVE |
| Overall Thickness | 0.188 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE CORNERS |
| Features Provided | FRAME AND TEMPERED |
| Environmental Protection | HIGH TEMPERATURE RESISTANT |
| Material | GLASS BOROSILICATE |
| 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 |
|---|---|
| 71301-04 PRIMARY | Star Manufacturing International Inc. Dba Lang Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| 71301-04 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1001453 | 5/9 Secondary reference Mills Products Inc |
NSN 9340-01-259-0756 is a Window,observation, manufactured by Star Manufacturing International Inc. Dba Lang Manufacturing Company, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-01-259-0756 has 1 manufacturer part number on file: 71301-04 (Star Manufacturing International Inc. Dba Lang Manufacturing Company).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-567-1979. Verify interchangeability with system specifications before substitution.
Key specifications for 71301-04: Overall Thickness: 0.188 INCHES NOMINAL IN; Material Transparency: CLEAR; Style Designator: SQUARE CORNERS; Overall Length: 17.125 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.