The Cell,optical Element, cataloged under National Stock Number 1240-00-161-0423, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1240-00-161-0423 |
| Primary Part Number | 8215538 |
| Item Name | Cell,optical Element |
| 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 |
| FSC Application Data | PERISCOPE,BATTERY COMMAND |
| Element Securing Method | CEMENT AND THREADED RING |
| Overall Diameter | 1.772 INCHES MINIMUM AND 1.775 INCHES MAXIMUM IN |
| Eccentric Construction | NOT PROVIDED |
| Thread Pitch Diameters | +1.7054 TO 1.7094 INCHES AND +1.5682 TO 1.5722 INCHES AND +1.4484 TO 1.4536 INCHES IN |
| Material Document and Classification | WW-T-700/3, ALLOY 2024, T3 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024, T4 FED SPEC 2ND MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024, T6 FED SPEC 3RD MATERIAL RESPONSE |
| Thread Length | 0.650 INCHES AND 0.390 INCHES AND 0.156 INCHES IN |
| Thread Location | EXTERNAL AND INTERNAL |
| Chamfer Location | INTERNAL THREAD END |
| Thread Direction | RIGHT-HAND |
| Chamfer Size | 0.010 IN. TO 0.020 IN. BY 45 DEG. IN |
| Thread Size | 1.750-16-0.375L AND 1.593-32 AND 1.468-32 |
| Screw Thread Series Designator | UNS |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
|---|---|
| 8215538 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 8215538 | 5/9 Secondary reference Grayco Optical Corp |
NSN 1240-00-161-0423 is a Cell,optical Element, 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 1240-00-161-0423 has 1 manufacturer part number on file: 8215538 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 8215538: FSC Application Data: PERISCOPE,BATTERY COMMAND; Element Securing Method: CEMENT AND THREADED RING; Overall Diameter: 1.772 INCHES MINIMUM AND 1.775 INCHES MAXIMUM IN; Eccentric Construction: NOT PROVIDED. 15 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 1240-00-161-0423 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.