The Illuminator,infrared, cataloged under National Stock Number 5855-01-465-2168, 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 Night Vision 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 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 | 5855-01-465-2168 |
| Primary Part Number | M644 |
| Item Name | Illuminator,infrared |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Night Vision Systems, Llc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 3.0 DC |
| 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 |
|---|---|
| M644 PRIMARY | Night Vision Systems, Llc (USA) |
NSN 5855-01-465-2168 is a Illuminator,infrared, manufactured by Night Vision Systems, Llc, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-465-2168 has 1 manufacturer part number on file: M644 (Night Vision Systems, Llc).
1 possible match (shared part number, not a government interchangeability claim): 1240-01-693-7553. Verify interchangeability with system specifications before substitution.
Key specifications for M644: Voltage in Volts and Current Type: 3.0 DC; Special Features: 4-POWER;KIT INCLUDES CARRYING BAG, AA BATTERIES, MANUAL, CLEANING BRUSH AND PAPER, AND ARMS 11 AND 19 MOUNTS; End Item Identification: CAN BE MOUNTED ON ALMOST ANY WEAPON INCLUDING .50 CAL SNIPER RIFLES. 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.
NSN 5855-01-465-2168 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.