The Helmet Adaptor, cataloged under National Stock Number 5855-01-560-7866, 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 Steiner Eoptics, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5855-01-560-7866 |
| Primary Part Number | 2777-0349-3 |
| Item Name | Helmet Adaptor |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Steiner Eoptics, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 2777-0349-3 PRIMARY | Steiner Eoptics, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5855PL2008858 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5855-01-560-7866 is a Helmet Adaptor, manufactured by Steiner Eoptics, Inc., classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-560-7866 has 1 manufacturer part number on file: 2777-0349-3 (Steiner Eoptics, Inc.).
Key specifications for 2777-0349-3: Special Features: USED WITH TC2000 STANDARD MICH HELMETS AND SIMULAR SHAPES. ARE USED AS MOUNTING POINT FOR AN/PVS-21 LOW PROFILES NIGHT VISION GOGGLE. ASSEMBLY IS BOLTED TO THE HELMET FIXED ATTACHMENT POINT FOR INTERFACE WITH THE STS MOUNTSAGAVGAN/PVS-21 LOW PROFILE NIGHT VISION GOGGLE MODEL, 2740 LOW PROFILE NIGH T VISION MONOCULAR, OR MODEL 2758 DAYVIEWER. 0 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.