The Lens,optical Instrument, cataloged under National Stock Number 6650-01-072-4855, 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 E.r. Precision Optical Corp. Dba Er Precision Optical Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6650-01-072-4855 |
| Primary Part Number | 2078944-1 |
| Item Name | Lens,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | E.r. Precision Optical Corp. Dba Er Precision Optical Corp |
| Status | ACTIVE |
| FSC Application Data | ACFT GUNNERY FIRE CONTROL COMPONENT |
| Diameter | 2.809 INCHES NOMINAL IN |
| Compound Lens Style | DOUBLET |
| 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 |
|---|---|
| 2078944-1 PRIMARY | E.r. Precision Optical Corp. Dba Er Precision Optical Corp (USA) |
| Reference | Meaning |
|---|---|
| 2078944-1 | 5/2 Secondary reference U.S. Government activity |
NSN 6650-01-072-4855 is a Lens,optical Instrument, manufactured by E.r. Precision Optical Corp. Dba Er Precision Optical Corp, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-072-4855 has 1 manufacturer part number on file: 2078944-1 (E.r. Precision Optical Corp. Dba Er Precision Optical Corp).
Key specifications for 2078944-1: FSC Application Data: ACFT GUNNERY FIRE CONTROL COMPONENT; Diameter: 2.809 INCHES NOMINAL IN; End Item Identification: AN/AAQ-9 INFRARED DETECTING SET; Compound Lens Style: DOUBLET. 3 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 6650-01-072-4855 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.