The Mount,telescope, cataloged under National Stock Number 1240-01-643-2861, 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and Ranging Equipment) of the Fire Control Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1240-01-643-2861 |
| Item Name | Mount,telescope |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AWP 8110-34-20M | 3/9 Design control — primary reference Operational Product Supply and Services Llc |
NSN 1240-01-643-2861 is a Mount,telescope, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
Key specifications for 1240-01-643-2861: Special Features: ONE PIECE 34MM RING SET WITH 20 MOA DOWNWARD BIAS, 1.5 INCH CENTERLINE HEIGHT. INCLUDES FIELD PARTS KIT AND ANTI-CANT MODULE. FOR USE WITH PSR DAYSCOPES (NSN: 1240-01-599-9400 AND NSN: 1240-01-610-4844) ON THE MK13 AND MK21 SERIES SNIPER RIFLES. WIDTH: 2.1 IN; HEIGHT: 2.5 IN; LENGTH: 4.875 IN; WEIGHT: 0.59LB. LBS. 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 1240-01-643-2861 has DEMIL Code B. 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.