The Lens,optical Instrument, cataloged under National Stock Number 6650-01-211-5579, 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 Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6650-01-211-5579 |
| Primary Part Number | 37450-3 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems |
| Status | ACTIVE |
| Material Document and Classification | MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE |
| Diameter | 6.609 INCHES NOMINAL IN |
| Axial Thickness | 0.819 INCHES NOMINAL IN |
| Material | GLASS OPTICAL |
| Single Lens Style | MENISCUS CONVERGING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 37450-3 PRIMARY | Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems (USA) |
| 37450-3 | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 10150212 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 37450-3 | 5/1 Secondary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
NSN 6650-01-211-5579 is a Lens,optical Instrument, manufactured by Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-211-5579 has 2 manufacturer part numbers on file: 37450-3 (Rockwell Collins Optronics Inc. Div Collins Aerospace - Mission Systems), 37450-3 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 37450-3: Material Document and Classification: MIL-G-174, CLASS 1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE; Diameter: 6.609 INCHES NOMINAL IN; Axial Thickness: 0.819 INCHES NOMINAL IN; Material: GLASS OPTICAL. 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.
NSN 6650-01-211-5579 has DEMIL Code D. 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.