The Window,optical Instrument, cataloged under National Stock Number 1240-01-568-5200, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Electro Optic Systems Pty Ltd. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-568-5200 |
| Primary Part Number | COF06645 |
| Item Name | Window,optical Instrument |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Electro Optic Systems Pty Ltd |
| Status | ACTIVE |
| Length | 20.0 MILLIMETERS NOMINAL MM |
| Surface Finish | ROUGH |
| Material Document and Classification | MIL-G-174 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Width | 8.5 MILLIMETERS NOMINAL MM |
| Material | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| COF06645 | Electro Optic Systems Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| COF06645 | 3/9 Design control — primary reference Eos Technologies, Inc. Dba Eos |
NSN 1240-01-568-5200 is a Window,optical Instrument, manufactured by Electro Optic Systems Pty Ltd, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-568-5200 has 1 manufacturer part number on file: COF06645 (Electro Optic Systems Pty Ltd).
Key specifications for COF06645: Length: 20.0 MILLIMETERS NOMINAL MM; Surface Finish: ROUGH; Material Document and Classification: MIL-G-174 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Width: 8.5 MILLIMETERS NOMINAL MM. 5 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.
NSN 1240-01-568-5200 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.