The Sight,thermal, cataloged under National Stock Number 5855-01-540-1831, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5855-01-540-1831 |
| Primary Part Number | M890 |
| Item Name | Sight,thermal |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Night Vision Systems, Llc |
| Status | ACTIVE |
| Special Test Features | UNIVERSAL WATERPROOF NIGHT SCOPE. COMPATIBLE WITH POWERED SCOPES AND POWER SIGHTS. INSTALLS AND REMOVES WITHOUT THE NEED FOR BORESIGHT ADJUSTMENT. ADDS NIGHT CAPABILITY TO EXISTING RIFLE AND DAY SIGHTS. |
| 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 |
|---|---|
| M890 PRIMARY | Night Vision Systems, Llc (USA) |
NSN 5855-01-540-1831 is a Sight,thermal, manufactured by Night Vision Systems, Llc, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-540-1831 has 1 manufacturer part number on file: M890 (Night Vision Systems, Llc).
Key specifications for M890: Special Test Features: UNIVERSAL WATERPROOF NIGHT SCOPE. COMPATIBLE WITH POWERED SCOPES AND POWER SIGHTS. INSTALLS AND REMOVES WITHOUT THE NEED FOR BORESIGHT ADJUSTMENT. ADDS NIGHT CAPABILITY TO EXISTING RIFLE AND DAY SIGHTS.; Overall Length: 4.400 INCHES NOMINAL IN; Special Features: POWER SOURCE: BATTERY; OPERATING TIME: 5.5 HOURS; MOUNTING: QUICK ATTAH/DETACH TO MIL-STD-1913 (PICATINNY) RAIL; WEIGHT: 23 OUNCES.DIAMETER IS 3.125. OZ; Part Name Assigned by Controlling Agency: VIEWER, THERMAL. 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 5855-01-540-1831 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.