The Mirror,tow,glld,ts, cataloged under National Stock Number 5855-01-147-3198, 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 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5855-01-147-3198 |
| Item Name | Mirror,tow,glld,ts |
| FSC / FSG | 5855 / 58 — Night Vision Equipment, Emitted and Reflected Radiation |
| Status | ACTIVE |
| General Characteristics Item Description | OPTICAL GLASS BK-7 (517-642),GRADE A PER SM-C-805999-7;CHAMFER ALL EDGES,.03 MAX EDGE WIDTH; 1.50 IN. L;1.40 IN. W;.50 IN. THICK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SM-C-807550 | 3/2 Design control — primary reference U.S. Government activity |
| SM-C-807550 | 5/2 Secondary reference U.S. Government activity |
NSN 5855-01-147-3198 is a Mirror,tow,glld,ts, classified under FSC 5855, Night Vision Equipment, Emitted and Reflected Radiation. Status: active.
Key specifications for 5855-01-147-3198: General Characteristics Item Description: OPTICAL GLASS BK-7 (517-642),GRADE A PER SM-C-805999-7;CHAMFER ALL EDGES,.03 MAX EDGE WIDTH; 1.50 IN. L;1.40 IN. W;.50 IN. THICK IN. 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 5855-01-147-3198 has DEMIL Code B. 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.