The Sight,reflex, cataloged under National Stock Number 1240-01-587-9178, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-587-9178 |
| Primary Part Number | M231 BLK |
| Item Name | Sight,reflex |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M231 BLK | L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions (USA) |
| Reference | Meaning |
|---|---|
| EXPS3-0 | 5/9 Secondary reference L-3 Communications Eotech, Inc. Dba Eotech |
| EXPS3-0 | 5/9 Secondary reference L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions |
| 1240PL2104446 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| EXPS3-0C | 3/9 Design control — primary reference L-3 Communications Eotech, Inc. Dba Eotech |
NSN 1240-01-587-9178 is a Sight,reflex, manufactured by L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-587-9178 has 1 manufacturer part number on file: M231 BLK (L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions).
Key specifications for M231 BLK: Special Features: THE SU-231C/PEQ IS AN UPGRADE TO THE SU-231/PEQ. IT IS A HOLOGRAPHIC WEAPON SIGHT THAT ALLOWS THE USER TO ACQUIRE A TARGET AND AIM THE WEAPON. IT USES A SINGLE TRANSVERSELY MOUNTED LITHIUM 123 BATTERY. THE RETICLE IS A 65 MOA CIRCLE WITH QUADRANT TICKS AND A 1 MOA AIMING DOT.THE WINDAGE AND ELEVATION ADJUSTMENT KNOBS ARE MODIFIED TO ALLOW FOR TOOL-FREE ZEROING ADJUSTMENT. HOUSING COLOR IS BLACK.DESIGNED FOR USE WITH THE M4 CARBINE AND SCAR WEAPON SYSTEMS. 0 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1240-01-587-9178 has DEMIL Code Q. 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.