The Sight Unit, cataloged under National Stock Number 1240-01-724-8765, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Lightforce Usa, Incorporated Div Mil-Gov-Le. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-724-8765 |
| Primary Part Number | M681 |
| Item Name | Sight Unit |
| FSC / FSG | 1240 / 12 — No Item Name Available |
| Manufacturer | Lightforce Usa, Incorporated Div Mil-Gov-Le |
| Status | ACTIVE |
| Focusing Type | ADJUSTABLE |
| Optical Device Type | LENS |
| Straight Type Overall Length | 16.1 INCHES NOMINAL IN |
| Objective Aperture Diameter | 34.0 MILLIMETERS NOMINAL MM |
| Magnification | 7.0 MINIMUM AND 35.0 MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1240-01-724-8765 is a Sight Unit, manufactured by Lightforce Usa, Incorporated Div Mil-Gov-Le, classified under FSC 1240 (No Item Name Available). Status: active.
NSN 1240-01-724-8765 has 2 cross-referenced part numbers: M681 (Lightforce Usa, Incorporated Div Mil-Gov-Le), M681 (Nioa Trading Nioa Nominees Pty Limited Div Nioa).
There are 3 known substitutes for 1240-01-724-8765: 3110-00-227-3874, 2530-00-383-4819, 4030-01-218-1567. Verify interchangeability with system specifications before substitution.
Key specifications for M681: Special Features: FOCAL PLANE FIRST; MOUNTING LENGTH 6.6 INCHES; FIELD OF VIEW AT 100 YARDS 7 TIMES 15.0 FEET; IN; Focusing Type: ADJUSTABLE; Optical Device Type: LENS; Part Name Assigned by Controlling Agency: LAND159-M681 7-35X56F1. 7 total characteristics are documented in the Federal Logistics Information System.