The Ring,retaining,optical Element, cataloged under National Stock Number 5855-01-256-9384, 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 Dept of the Army U S Army Electronics Command Night Vision Laboratory. Government technical data includes 5 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5855-01-256-9384 |
| Primary Part Number | 5007681 |
| Item Name | Ring,retaining,optical Element |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Manufacturer | Dept of the Army U S Army Electronics Command Night Vision Laboratory |
| Status | ACTIVE |
| FSC Application Data | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION |
| Special Test Features | INTERPRET IAW DOD-STD-100C; MARK IAW MIL-STD-130 |
| Supplementary Features | EJECTION MARKS,FLASH AND GATE PROJECTIONS SHALL NOT EXCEED .005 IN. IN |
| Outside Diameter | 1.590 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 5007681 | Dept of the Army U S Army Electronics Command Night Vision Laboratory (USA) |
| Reference | Meaning |
|---|---|
| 207943-100 | 5/1 Secondary reference L3 Technologies, Inc. |
| A3140777 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5855-01-256-9384 is a Ring,retaining,optical Element, manufactured by Dept of the Army U S Army Electronics Command Night Vision Laboratory, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
NSN 5855-01-256-9384 has 1 manufacturer part number on file: 5007681 (Dept of the Army U S Army Electronics Command Night Vision Laboratory).
Key specifications for 5007681: FSC Application Data: NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION; Special Test Features: INTERPRET IAW DOD-STD-100C; MARK IAW MIL-STD-130; Supplementary Features: EJECTION MARKS,FLASH AND GATE PROJECTIONS SHALL NOT EXCEED .005 IN. IN; Outside Diameter: 1.590 INCHES NOMINAL IN. 5 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.