The Window,observation, cataloged under National Stock Number 9340-00-440-0701, is classified within Federal Supply Class 9340 (Glass Fabricated Materials) of the Nonmetallic Fabricated Materials group. The manufacturer of record is Telemechanics Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9340-00-440-0701 |
| Primary Part Number | 142989 |
| Item Name | Window,observation |
| FSC / FSG | 9340 / 93 — Glass Fabricated Materials |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| FSC Application Data | TELETYPE AND FACSIMILE EQUIPMENT |
| Insulating Air Space Material Arrangement | PLASTIC TO PLASTIC |
| Overall Thickness | 0.093 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SINGLE OFFSET CHAMFERED CORNERS |
| Body Length | 3.875 INCHES NOMINAL IN |
| Edge Type | FLAT UNFINISHED |
| Offset Width | 2.500 INCHES NOMINAL IN |
| Material | PLASTIC |
| 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 |
|---|---|
| 142989 PRIMARY | Telemechanics Inc (USA) |
| 142989 | Lucent Technologies Inc Corporate Headquarters (USA) |
| Reference | Meaning |
|---|---|
| 142989 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 142989 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
NSN 9340-00-440-0701 is a Window,observation, manufactured by Telemechanics Inc, classified under FSC 9340, Glass Fabricated Materials. Status: active.
NSN 9340-00-440-0701 has 2 manufacturer part numbers on file: 142989 (Telemechanics Inc), 142989 (Lucent Technologies Inc Corporate Headquarters).
Key specifications for 142989: FSC Application Data: TELETYPE AND FACSIMILE EQUIPMENT; Insulating Air Space Material Arrangement: PLASTIC TO PLASTIC; Overall Thickness: 0.093 INCHES NOMINAL IN; Material Transparency: CLEAR. 9 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.