PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G5-4-1Window,observation

Todd Combustion Inc · NSN 9340-00-202-2517 · FSC 9340 · No Item Name Available
Verified by PartsTable
NSN 9340-00-202-2517 — this item is cataloged by the U.S. Government under National Stock Number 9340-00-202-2517. Primary manufacturer part number: G5-4-1.
Features
  • Window,observation — FSC 9340
  • Style Designator: CIRCULAR
  • Overall Thickness: 0.125 INCHES NOMINAL IN
  • Material: GLASS
  • Overall Diameter: 2.000 INCHES NOMINAL IN
  • 28 verified cross-references
  • Primary manufacturer: Todd Combustion Inc
Applications
  • Applications requiring Glass construction
General Description

The Window,observation, cataloged under National Stock Number 9340-00-202-2517, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Todd Combustion Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 28 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9340-00-202-2517
Primary Part NumberG5-4-1
Item NameWindow,observation
FSC / FSG9340 / 93 — No Item Name Available
ManufacturerTodd Combustion Inc
StatusACTIVE
Style DesignatorCIRCULAR
Overall Thickness0.125 INCHES NOMINAL IN
MaterialGLASS
Overall Diameter2.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-290-7879 INTERCHANGEABLE
Gasket
2815-00-460-63654021802 INTERCHANGEABLE
Cylinder Sleeve and Piston Assem
Agco Corp Parts Opn
Cross-Reference Index
Part NumberManufacturer
50290-157 Todd Shipyards Corp (USA)
G5-4-1 PRIMARY Todd Combustion Inc (USA)
50382PC57 Todd Shipyards Corp (USA)
50238ALT3PC157 Todd Shipyards Corp (USA)
50134ALT16PC157 Todd Shipyards Corp (USA)
50209ALT5PC157 Todd Shipyards Corp (USA)
157-50134 Todd Shipyards Corp (USA)
50290PC157 Todd Shipyards Corp (USA)
S7701-74525ALT16PC157 PRIMARY Naval Ship Systems Command (USA)
S5101-925940PC57 PRIMARY Naval Ship Systems Command (USA)
S7701-742291PC157 PRIMARY Naval Ship Systems Command (USA)
S7701-595700ALT3PC157 PRIMARY Naval Ship Systems Command (USA)
S7701-595700PC157 PRIMARY Naval Ship Systems Command (USA)
50239PC157 Puget Sound Commerce Center, Inc. (USA)
50209ALT5PC157 Puget Sound Commerce Center, Inc. (USA)
50239ALT4PC157 Todd Shipyards Corp (USA)
S7701-74525PC157 PRIMARY Naval Ship Systems Command (USA)
S7701-540503ALT5PC157 PRIMARY Naval Ship Systems Command (USA)
S7701-595710ALT4PC157 PRIMARY Naval Ship Systems Command (USA)
50239ALT4PC157 Puget Sound Commerce Center, Inc. (USA)
Related Parts
5330-00-290-7879INTERCHANGEABLE
GASKET
2815-00-460-6365INTERCHANGEABLE
CYLINDER SLEEVE AND PISTON ASSEM
4021802

Frequently Asked Questions

What is NSN 9340-00-202-2517?

NSN 9340-00-202-2517 is a Window,observation, manufactured by Todd Combustion Inc, classified under FSC 9340 (No Item Name Available). Status: active.

What are the part numbers for NSN 9340-00-202-2517?

NSN 9340-00-202-2517 has 28 cross-referenced part numbers: 50290-157 (Todd Shipyards Corp), G5-4-1 (Todd Combustion Inc), 50382PC57 (Todd Shipyards Corp), 50238ALT3PC157 (Todd Shipyards Corp), 50134ALT16PC157 (Todd Shipyards Corp) and 23 more.

What NSN replaces 9340-00-202-2517?

There are 2 known substitutes for 9340-00-202-2517: 5330-00-290-7879, 2815-00-460-6365. Verify interchangeability with system specifications before substitution.

What are the specifications of G5-4-1?

Key specifications for G5-4-1: Style Designator: CIRCULAR; Overall Thickness: 0.125 INCHES NOMINAL IN; Material: GLASS; Overall Diameter: 2.000 INCHES NOMINAL IN. 4 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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