The Ring,retaining,optical Element, cataloged under National Stock Number 5855-01-467-0128, is classified within Federal Supply Class 5855 (Night Vision Equipment, Emitted and Reflected Radiation) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5855-01-467-0128 |
| Item Name | Ring,retaining,optical Element |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Status | ACTIVE |
| Internal Flange Thickness | 0.040 INCHES NOMINAL IN |
| Drive Type | SLOTTED DRIVE ON PERIPHERY |
| Thread Pitch Diameters | +1.2780 TO 1.3125 INCHES IN |
| Outside Diameter | 1.450 INCHES NOMINAL IN |
| Thread Length | 0.313 INCHES IN |
| Thread Location | INTERNAL |
| Thread Direction | RIGHT-HAND |
| Thread Size | 1 5/16-32 |
| Screw Thread Series Designator | UNS |
| Thread Class | 2B |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A3144321 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5855-01-467-0128 is a Ring,retaining,optical Element, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
Key specifications for 5855-01-467-0128: Internal Flange Thickness: 0.040 INCHES NOMINAL IN; Drive Type: SLOTTED DRIVE ON PERIPHERY; Thread Pitch Diameters: +1.2780 TO 1.3125 INCHES IN; Outside Diameter: 1.450 INCHES NOMINAL IN. 11 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.