The Case,optical Instrument, cataloged under National Stock Number 5855-01-643-9589, is classified within Federal Supply Class 5855 (Night Vision Equipment, Emitted and Reflected Radiation) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Drs Network & Imaging Systems Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5855-01-643-9589 |
| Primary Part Number | 440001-498 |
| Item Name | Case,optical Instrument |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Drs Network & Imaging Systems Llc |
| Status | ACTIVE |
| Unpackaged Unit Weight | 0.81 POUNDS LBS |
| 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 |
|---|---|
| 440001-498 PRIMARY | Drs Network & Imaging Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 440001-498 | 5/9 Secondary reference Drs Network & Imaging Systems, Llc |
NSN 5855-01-643-9589 is a Case,optical Instrument, manufactured by Drs Network & Imaging Systems Llc, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-643-9589 has 1 manufacturer part number on file: 440001-498 (Drs Network & Imaging Systems Llc).
Key specifications for 440001-498: Overall Height: 5.0 INCHES NOMINAL IN; Overall Length: 12.75 INCHES NOMINAL IN; Overall Width: 6.75 INCHES NOMINAL IN; Special Features: THE SU-280/PAS SOFT CARRYING CASE PROVIDES PADDED PROTECTION AND ORGANIZATION FOR MOST OF THE ANCILLARY ITEMS WHEN THE SIGHT IS NOT IN THE HARD TRANSIT CASE.. 1 specification is 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.