The Ring,retaining,optical Element, cataloged under National Stock Number 5855-01-664-4846, 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. The record lists 2 manufacturer part numbers 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.
| Item Name | Ring,retaining,optical Element |
| FSC / FSG | 5855 — Night Vision Equipment, Emitted and Reflected Radiation (FSG 58) |
| Manufacturers | Drs Network & Imaging Systems Llc (CAGE 32865) |
| Parameter | Value |
|---|---|
| NSN | 5855-01-664-4846 |
| Primary Part Number | 1025937 |
| Item Name | Ring,retaining,optical Element |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Drs Network & Imaging Systems Llc |
| 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 |
|---|---|
| 1025937 PRIMARY | Drs Network & Imaging Systems Llc (USA) |
| 1025937-001 PRIMARY | Drs Network & Imaging Systems Llc (USA) |
NSN 5855-01-664-4846 is a Ring,retaining,optical Element, manufactured by Drs Network & Imaging Systems Llc, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-664-4846 has 2 manufacturer part numbers on file: 1025937 (Drs Network & Imaging Systems Llc), 1025937-001 (Drs Network & Imaging Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 2510-01-706-5191. Verify interchangeability with system specifications before substitution.
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.