The Expansion Section Optics, cataloged under National Stock Number 1240-01-078-3187, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Lockheed Martin Corporation. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1240-01-078-3187 |
| Primary Part Number | 128845 |
| Item Name | Expansion Section Optics |
| FSC / FSG | 1240 / 12 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ITEM CONSISTS OF ONE INPUT LENS CELL ASSY,P/N 128835FONE OUTPUT LENS CELL ASSY,P/N 128839;ONE PRISM BLOCK ASSY,P/N 128831 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 1240-01-078-3187 is a Expansion Section Optics, manufactured by Lockheed Martin Corporation, classified under FSC 1240 (No Item Name Available). Status: active.
NSN 1240-01-078-3187 has 2 cross-referenced part numbers: 128845 (Lockheed Martin Corporation), 128845 (Lockheed Martin Corp Electronics and Missiles Div).
There are 2 known substitutes for 1240-01-078-3187: 5310-00-167-0816, 5961-00-840-1595. Verify interchangeability with system specifications before substitution.
Key specifications for 128845: General Characteristics Item Description: ITEM CONSISTS OF ONE INPUT LENS CELL ASSY,P/N 128835FONE OUTPUT LENS CELL ASSY,P/N 128839;ONE PRISM BLOCK ASSY,P/N 128831; End Item Identification: AN/AVQ-26 LASER TRANSMITTER. 2 total characteristics are documented in the Federal Logistics Information System.