The Objective,microscope, cataloged under National Stock Number 6650-01-231-6728, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-231-6728 |
| Item Name | Objective,microscope |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Status | ACTIVE |
| Numeric Aperture | 0.20 |
| Lens Type | ACHROMATIC |
| Working Distance | 12.5 MILLIMETERS NOMINAL MM |
| Lens Focal Length | 18.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 80.3050 | 3/9 Design control — primary reference J.j. Ross International Corporation Dba Rolyn Optics |
NSN 6650-01-231-6728 is a Objective,microscope, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6680-01-353-3283. Verify interchangeability with system specifications before substitution.
Key specifications for 6650-01-231-6728: Numeric Aperture: 0.20; Lens Type: ACHROMATIC; Working Distance: 12.5 MILLIMETERS NOMINAL MM; Lens Focal Length: 18.0 MILLIMETERS NOMINAL MM. 4 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.