NSN 1240-00-025-0271 · NIIN 000250271 · Part number 944642
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 10001
Government record, cited
NSN 1240-00-025-0271 — this item is cataloged by the U.S. Government under National Stock Number 1240-00-025-0271. Manufacturer of record part number: 944642.
Also searched as1240-00-025-0271 ·
1240000250271 ·
NIIN 000250271 ·
00-025-0271 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 10001 · 944642 · TA3726
Manufacturer of record: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Identification
NSN: 1240-00-025-0271
NIIN: 000250271
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 944642
Manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
General Description
The Filter,light,optical Instrument, cataloged under National Stock Number 1240-00-025-0271, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-00-025-0271
Primary Part Number
944642
Item Name
Filter,light,optical Instrument
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
Manufacturer
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Other items in FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-000-0160
SIGHT UNIT
1240-00-001-4014
1240-00-001-4014 · Item name not on file
1240-00-001-4015
1240-00-001-4015 · Item name not on file
1240-00-001-4488
FILTER,LIGHT,OPTICAL INSTRUMENT
1240-00-003-1076
1240-00-003-1076 · Item name not on file
1240-00-003-8404
1240-00-003-8404 · Item name not on file
1240-00-003-8405
1240-00-003-8405 · Item name not on file
1240-00-003-8406
MOUNT,TELESCOPE
Frequently Asked Questions
What is NSN 1240-00-025-0271?
NSN 1240-00-025-0271 is a Filter,light,optical Instrument, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-00-025-0271?
NSN 1240-00-025-0271 has 2 manufacturer part numbers on file: 944642 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), TA3726 (L3 Technologies, Inc. Div L3 Keo).
What are the specifications of 944642?
Key specifications for 944642: Overall Diameter: 89.0 MILLIMETERS NOMINAL MM; Overall Thickness: 6.0 MILLIMETERS NOMINAL MM; Surface Parallelism: 10.0 SECONDS; Density Variability: NOT VARIABLE. 5 specifications are documented in the U.S. Government catalog.
Is NSN 1240-00-025-0271 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 1240-00-025-0271?
NSN 1240-00-025-0271 has DEMIL Code D. 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.