The Cell,optical Element, cataloged under National Stock Number 1240-00-167-7945, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-00-167-7945 |
| Item Name | Cell,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Status | ACTIVE |
| Overall Diameter | 2.865 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN |
| Eccentric Construction | NOT PROVIDED |
| Thread Pitch Diameters | +2.7798 TO 2.7848 INCHES AND +0.7238 TO 0.7286 INCHES IN |
| Thread Location | INTERNAL |
| Chamfer Location | INTERNAL THREAD END |
| Chamfer Size | 0.112 IN. BY 20 DEG IN |
| Thread Size | 2 199/250-40 AND 37/50-40 |
| Screw Thread Series Designator | UNS |
| Surface Treatment | ANODIZE |
| Thread Class | 2B |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SC-D-635094-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1240-00-167-7945 is a Cell,optical Element, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
Key specifications for 1240-00-167-7945: Overall Diameter: 2.865 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN; Eccentric Construction: NOT PROVIDED; Thread Pitch Diameters: +2.7798 TO 2.7848 INCHES AND +0.7238 TO 0.7286 INCHES IN; Overall Length: 3.628 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 1240-00-167-7945 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.