NSN 1240-01-666-2106 · NIIN 016662106 · Part number 12024A2401
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 01365
Government record, cited
NSN 1240-01-666-2106 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-666-2106. Manufacturer of record part number: 12024A2401.
Also searched as1240-01-666-2106 ·
1240016662106 ·
NIIN 016662106 ·
01-666-2106 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 01365 · 12024A2401
Nearby stock numbers← 1240-01-666-2089 Mount Subassembly
·
1240-01-666-2117 Mount Subassembly →
Features
Mount Subassembly — FSC 1240
1 manufacturer part number on file
Manufacturer of record: Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
Identification
NSN: 1240-01-666-2106
NIIN: 016662106
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 12024A2401
Manufacturer: Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
General Description
The Mount Subassembly, cataloged under National Stock Number 1240-01-666-2106, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Mount Subassembly
FSC / FSG
1240 — Optical Sighting and Ranging Equipment (FSG 12)
Manufacturers
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (CAGE 01365)
Technical Specifications
Parameter
Value
NSN
1240-01-666-2106
Primary Part Number
12024A2401
Item Name
Mount Subassembly
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
Manufacturer
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA)
No interchangeability data on file.
Other items in FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-764-4734
SUNSHADE
1240-00-987-5071
1240-00-987-5071 · Item name not on file
1240-01-068-6676
HOLDER,OPTICAL ELEMENT
1240-01-082-8849
SIGHT,INFINITY
1240-01-090-0609
1240-01-090-0609 · Item name not on file
1240-01-102-4266
1240-01-102-4266 · Item name not on file
1240-01-110-9897
1240-01-110-9897 · Item name not on file
1240-01-361-6090
COLLIMATOR,INFINITY AIMING REFER
Frequently Asked Questions
What is NSN 1240-01-666-2106?
NSN 1240-01-666-2106 is a Mount Subassembly, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-666-2106?
NSN 1240-01-666-2106 has 1 manufacturer part number on file: 12024A2401 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).
Is NSN 1240-01-666-2106 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1240-01-666-2106?
NSN 1240-01-666-2106 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.