The Cell Assembly,optical Instrument, cataloged under National Stock Number 1240-01-061-4597, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 18 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 | 1240-01-061-4597 |
| Primary Part Number | 7688770 |
| Item Name | Cell Assembly,optical Instrument |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Optical Element Controlling Agency | USARMY |
| Cell Identifying Number | 7688775 DRAWING NO. |
| Optical Element Quantity | 4 |
| Overall Diameter | 1.558 INCHES NOMINAL IN |
| Eccentric Construction | NOT PROVIDED |
| Optical Element Type | SINGLE LENS |
| Thread Pitch Diameters | +1.4121 TO 1.4165 INCHES AND +1.5541 TO 1.5585 INCHES IN |
| Material Document and Classification | QQ-A-225/3, ALLOY 2011, T3 FED SPEC 1ST MATERIAL RESPONSE AND MIL-G-174, GRADE D MIL SPEC 2ND MATERIAL RESPONSE |
| Thread Length | 0.212 INCHES AND 0.821 INCHES IN |
| Thread Location | EXTERNAL |
| Thread Direction | RIGHT-HAND |
| Optical Element Identifying Number | 7688771 DRAWING NO. AND 7688773 DRAWING NO. AND 7688774 DRAWING NO. AND 7688777 DRAWING NO. |
| Accessory Components and Quantity | SEPARATOR 2; CAP 1 |
| Cell Controlling Agency | USARMY |
| Thread Size | 1 27/64-48 AND 1 9/16-48 |
| Screw Thread Series Designator | SPECIAL |
| Thread Class | 2A A |
| Material | ALUMINUM ALLOY 2011 AND GLASS OPTICAL |
| 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 |
|---|---|
| 7688770 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 1240-01-061-4597 is a Cell Assembly,optical Instrument, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-061-4597 has 1 manufacturer part number on file: 7688770 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 7688770: Optical Element Controlling Agency: USARMY; Cell Identifying Number: 7688775 DRAWING NO.; Optical Element Quantity: 4; Overall Diameter: 1.558 INCHES NOMINAL IN. 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 1240-01-061-4597 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.