The Cell,optical Element, cataloged under National Stock Number 1240-01-280-5498, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 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 | 1240-01-280-5498 |
| Primary Part Number | 3183224 |
| Item Name | Cell,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Overall Diameter | 0.812 INCHES NOMINAL IN |
| Eccentric Construction | NOT PROVIDED |
| Thread Pitch Diameters | +0.7742 TO 0.8125 INCHES AND +0.5910 TO 0.6250 INCHES IN |
| Thread Length | 0.250 INCHES AND 0.432 INCHES IN |
| Thread Location | EXTERNAL AND INTERNAL |
| Chamfer Location | BOTH ENDS |
| Thread Direction | RIGHT-HAND |
| Thread Size | 13/16-32 AND 5/8-32 |
| Screw Thread Series Designator | UN |
| Thread Class | 3A AND 3B A |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 3183224 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 1240-01-280-5498 is a Cell,optical Element, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-280-5498 has 1 manufacturer part number on file: 3183224 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 3183224: Overall Diameter: 0.812 INCHES NOMINAL IN; Eccentric Construction: NOT PROVIDED; Thread Pitch Diameters: +0.7742 TO 0.8125 INCHES AND +0.5910 TO 0.6250 INCHES IN; Overall Length: 3.545 INCHES NOMINAL IN. 11 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 1240-01-280-5498 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.