PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

055042-2Periscope Subassembly

L3 Technologies, Inc. Div L3 Keo · NSN 1240-01-104-7725 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-104-7725 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-104-7725. Primary manufacturer part number: 055042-2.
Features
  • Periscope Subassembly — FSC 1240
  • Major Components: FLANGED COUPLING 2,TUBE 1
  • Overall Diameter: 6.588 INCHES MINIMUM AND 6.593 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: L3 Technologies, Inc. Div L3 Keo
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Periscope Subassembly, cataloged under National Stock Number 1240-01-104-7725, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1240-01-104-7725
Primary Part Number055042-2
Item NamePeriscope Subassembly
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div L3 Keo
StatusACTIVE
Major ComponentsFLANGED COUPLING 2,TUBE 1
Overall Diameter6.588 INCHES MINIMUM AND 6.593 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
055042-2 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
933F055042-2 L3 Technologies, Inc. Div L3 Keo (USA)
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Frequently Asked Questions

What is NSN 1240-01-104-7725?

NSN 1240-01-104-7725 is a Periscope Subassembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-104-7725?

NSN 1240-01-104-7725 has 2 cross-referenced part numbers: 055042-2 (L3 Technologies, Inc. Div L3 Keo), 933F055042-2 (L3 Technologies, Inc. Div L3 Keo).

What are the specifications of 055042-2?

Key specifications for 055042-2: Overall Length: 65.760 INCHES MINIMUM AND 65.860 INCHES MAXIMUM IN; Major Components: FLANGED COUPLING 2,TUBE 1; Overall Diameter: 6.588 INCHES MINIMUM AND 6.593 INCHES MAXIMUM IN. 3 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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