NSN 1240-01-461-2659 · NIIN 014612659 · Part number 57K4032
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 19207
Government record, cited
NSN 1240-01-461-2659 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-461-2659. Manufacturer of record part number: 57K4032.
Also searched as1240-01-461-2659 ·
1240014612659 ·
NIIN 014612659 ·
01-461-2659 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 19207 · 57K4032
Manufacturer of record: U S Army Tank Automotive Command Amsta-Im-Mm
Identification
NSN: 1240-01-461-2659
NIIN: 014612659
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 57K4032
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Sight Unit, cataloged under National Stock Number 1240-01-461-2659, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-01-461-2659
Primary Part Number
57K4032
Item Name
Sight Unit
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
U S Army Tank Automotive Command Amsta-Im-Mm (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.
1240-00-000-0160
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 1240-01-461-2659?
NSN 1240-01-461-2659 is a Sight Unit, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-461-2659?
NSN 1240-01-461-2659 has 1 manufacturer part number on file: 57K4032 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 57K4032?
Key specifications for 57K4032: End Item Identification: GUNNER'S PRIM SIGHT, M1 TANK. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1240-01-461-2659 hazardous material?
Hazardous per DLA record (HMIC Y). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1240-01-461-2659?
NSN 1240-01-461-2659 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.