The Microscope,optical, cataloged under National Stock Number 6650-00-490-6987, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is American Optical Co. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-00-490-6987 |
| Primary Part Number | 42T |
| Item Name | Microscope,optical |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | American Optical Co |
| Status | ACTIVE |
| Stage Type | MECHANICAL |
| Body Tube Bertrand Lens | NOT PROVIDED |
| Magnification | 10.0X NOMINAL AND 20.0X NOMINAL |
| Length | 153.0 MILLIMETERS NOMINAL MM |
| Usage Design | STEREOSCOPY |
| Lens Type | ACHROMATIC |
| Body Tube Accessroy Slot | NOT PROVIDED |
| Design Type | GENERAL PURPOSE |
| Eyepiece Magnification | 10 |
| Focusing Type | ADJUSTABLE |
| Eyepiece Quantity | 2 |
| Body Tube Position | VERTICAL |
| Nonstereoscopic Type | BINOCULAR |
| Eyepiece Designator | WIDE FIELD |
| Stage Shape | SQUARE |
| Carrying Case | NOT PROVIDED |
| Width | 152.0 MILLIMETERS NOMINAL MM |
| Body Tube Analyzer | NOT INCLUDED |
| Body Tube Interchangeability Feature | NOT PROVIDED |
| Objective Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 42T PRIMARY | American Optical Co (USA) |
NSN 6650-00-490-6987 is a Microscope,optical, manufactured by American Optical Co, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-00-490-6987 has 1 manufacturer part number on file: 42T (American Optical Co).
Key specifications for 42T: Stage Type: MECHANICAL; Body Tube Bertrand Lens: NOT PROVIDED; Magnification: 10.0X NOMINAL AND 20.0X NOMINAL; Length: 153.0 MILLIMETERS NOMINAL MM. 20 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.
NSN 6650-00-490-6987 has DEMIL Code Q. 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.