The Eyepiece Assembly,optical Instru, cataloged under National Stock Number 1240-01-591-8149, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-591-8149 |
| Item Name | Eyepiece Assembly,optical Instru |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| G23.FTSTAN | 3/9 Design control — primary reference L-3 Communications Eotech, Inc. Dba Eotech |
NSN 1240-01-591-8149 is a Eyepiece Assembly,optical Instru, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
Key specifications for 1240-01-591-8149: Special Features: THE MAGNIFIER PROVIDES A SOLUTION FOR ENGAGING THREATS IN CQB SITUATIONS, THEN QUICKLY TRANSITIONING TO A 500M TARGETING OR SURVEILLNACE SITUATION, AND THEN QUICKLY BACK TO A 25M ROOM CLEARING EXERCISE. INSTANT TRANSITION IS ACHIEVED THROUGH A QUICK FLIP TO SIDE (FTS) MOUNT THAT OFFERS A SIMPLE,QUICK DISCONNECT FEATURE TO REMOVE THE MAGNIFIER AND BASE. THE MAGNIFIER CAN BE USED WITH THE SU-231/PEQ, SU-231A/PEQ, AND THE SU-231B/PEQ. HOUSING COLOR IS TAN A. 0 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 1240-01-591-8149 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.