The Cell,optical Element, cataloged under National Stock Number 1240-00-210-4398, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-210-4398 |
| Primary Part Number | 1390120 |
| Item Name | Cell,optical Element |
| FSC / FSG | 1240 / 12 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Element Securing Method | INTERNAL FLANGE |
| Drive Type | SLOTTED FACE |
| Chamfer Location | BOTH ENDS |
| Eccentric Construction | NOT PROVIDED |
| Material | ALUMINUM |
| Thread Length | 0.200 INCHES IN |
| Screw Thread Series Designator | UNS |
| Thread Location | EXTERNAL |
| Thread Direction | RIGHT-HAND |
| Thread Pitch Diameters | +1.1036 TO 1.1086 INCHES IN |
| Overall Diameter | 1.124 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Size | 1 7/64-32 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1240-00-210-4398 is a Cell,optical Element, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240 (No Item Name Available). Status: active.
NSN 1240-00-210-4398 has 3 cross-referenced part numbers: 789PC9 (Leica Inc Surveying and Photogrammetry Systems Div), 1390120 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 789-9 (American Optical Co).
There are 9 known substitutes for 1240-00-210-4398: 5940-00-194-7704, 5905-00-195-4288, 5950-00-497-0636 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1390120: Element Securing Method: INTERNAL FLANGE; Drive Type: SLOTTED FACE; Chamfer Location: BOTH ENDS; Eccentric Construction: NOT PROVIDED. 14 total characteristics are documented in the Federal Logistics Information System.