PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

59345Sight Unit

Leupold & Stevens Inc · NSN 1240-01-594-7618 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-594-7618 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-594-7618. Primary manufacturer part number: 59345.
Features
  • Sight Unit — FSC 1240
  • Magnification: 25.1 NOMINAL
  • Magnification Type: VARIABLE
  • Objective Aperture Diameter: 2.300 INCHES NOMINAL IN
  • Bracket: NOT PROVIDED
  • Carrying Case: NOT PROVIDED
  • Optical Device Type: LENS
  • Focusing Type: ADJUSTABLE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sight Unit, cataloged under National Stock Number 1240-01-594-7618, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Leupold & Stevens Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1240-01-594-7618
Primary Part Number59345
Item NameSight Unit
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerLeupold & Stevens Inc
StatusACTIVE
Magnification25.1 NOMINAL
Magnification TypeVARIABLE
Objective Aperture Diameter2.300 INCHES NOMINAL IN
BracketNOT PROVIDED
Carrying CaseNOT PROVIDED
Optical Device TypeLENS
Focusing TypeADJUSTABLE
Reticle Style DesignatorCROSSLINE
Scale MarkingsPROVIDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-182-31625934-5 INTERCHANGEABLE
Gasket
Eaton Aerospace, Llc Dba Jackson South
8040-00-851-0211 INTERCHANGEABLE
Adhesive
2530-00-876-985259-345 INTERCHANGEABLE
Rotochamber
Triumph Thermal Systems - Maryland, Inc.
6625-01-559-97275934 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Pomona Electronics
Cross-Reference Index
Part NumberManufacturer
59345 PRIMARY Leupold & Stevens Inc (USA)
Related Parts
5330-00-182-3162INTERCHANGEABLE
GASKET
5934-5
8040-00-851-0211INTERCHANGEABLE
ADHESIVE
2530-00-876-9852INTERCHANGEABLE
ROTOCHAMBER
59-345
6625-01-559-9727INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
5934

Frequently Asked Questions

What is NSN 1240-01-594-7618?

NSN 1240-01-594-7618 is a Sight Unit, manufactured by Leupold & Stevens Inc, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-594-7618?

NSN 1240-01-594-7618 has 1 cross-referenced part number: 59345 (Leupold & Stevens Inc).

What NSN replaces 1240-01-594-7618?

There are 4 known substitutes for 1240-01-594-7618: 5330-00-182-3162, 8040-00-851-0211, 2530-00-876-9852 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 59345?

Key specifications for 59345: Magnification: 25.1 NOMINAL; Magnification Type: VARIABLE; Objective Aperture Diameter: 2.300 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: 4.5-14X50 FRONT FOCAL TMR RETICLE ER/T M3 MARK 4 SCOPE. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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