The Cell Assembly,optical Instrument, cataloged under National Stock Number 6650-01-039-2844, 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 Optex Systems, Inc Div Applied Optics Center. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6650-01-039-2844 |
| Primary Part Number | SM-D-850490-5 |
| Item Name | Cell Assembly,optical Instrument |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Optex Systems, Inc Div Applied Optics Center |
| Status | ACTIVE |
| FSC Application Data | NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION |
| Optical Element Controlling Agency | US ARMY ELECTRONICS COMMAND PROCUREMENT AND PRODUCTION DIRECTORATE |
| Cell Identifying Number | SM-D-850447 PART NO. |
| Optical Element Quantity | 1 |
| Overall Diameter | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Eccentric Construction | NOT PROVIDED |
| Optical Element Type | RETICLE |
| Thread Pitch Diameters | +0.3165 TO 0.3200 INCHES IN |
| Thread Length | 0.265 INCHES IN |
| Thread Location | INTERNAL |
| Thread Direction | RIGHT-HAND |
| Optical Element Identifying Number | SM-D-850494-5 PART NO. |
| Cell Controlling Agency | US ARMY ELECTRONICS COMMAND PROCUREMENT AND PRODUCTION DIRECTORATE |
| Thread Size | 21/64-56 |
| Screw Thread Series Designator | UNS |
| Thread Class | 2B |
| Material | ALUMINUM ALLOY 6061 AND GLASS |
| Usage Design | SECURES ONE RETICLE |
| 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 |
|---|---|
| SM-D-850490-5 | Optex Systems, Inc Div Applied Optics Center (USA) |
| SM-D-850490-5 | Loar Manufacturing Corp (USA) |
| SM-D-850490-5 | Plx Inc. Dba Plx Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-D-850490-5 | 3/2 Design control — primary reference U.S. Government activity |
| SM-D-850490-5 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division |
NSN 6650-01-039-2844 is a Cell Assembly,optical Instrument, manufactured by Optex Systems, Inc Div Applied Optics Center, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-039-2844 has 3 manufacturer part numbers on file: SM-D-850490-5 (Optex Systems, Inc Div Applied Optics Center), SM-D-850490-5 (Loar Manufacturing Corp), SM-D-850490-5 (Plx Inc. Dba Plx Inc).
Key specifications for SM-D-850490-5: FSC Application Data: NIGHT VISION EQUIPMENT,EMITTED AND REFLECTED RADIATION; Optical Element Controlling Agency: US ARMY ELECTRONICS COMMAND PROCUREMENT AND PRODUCTION DIRECTORATE; Cell Identifying Number: SM-D-850447 PART NO.; Optical Element Quantity: 1. 18 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 6650-01-039-2844 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.