PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILG2697TYPEAWindow,observation

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 9340-00-290-7134 · FSC 9340 · No Item Name Available
Verified by PartsTable
NSN 9340-00-290-7134 — this item is cataloged by the U.S. Government under National Stock Number 9340-00-290-7134. Primary manufacturer part number: MILG2697TYPEA.
Features
  • Window,observation — FSC 9340
  • Material: GLASS
  • Style Designator: CIRCULAR
  • Material Document and Classification: DD-G-451,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE
  • Nondefinitive Spec/std Data: A TYPE
  • Edge Type: BEVELED
  • Overall Diameter: 2.375 INCHES NOMINAL IN
  • Material Transparency: CLEAR
Applications
  • Applications requiring Glass construction
General Description

The Window,observation, cataloged under National Stock Number 9340-00-290-7134, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9340-00-290-7134
Primary Part NumberMILG2697TYPEA
Item NameWindow,observation
FSC / FSG9340 / 93 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
MaterialGLASS
Style DesignatorCIRCULAR
Material Document and ClassificationDD-G-451,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std DataA TYPE
Edge TypeBEVELED
Overall Diameter2.375 INCHES NOMINAL IN
Material TransparencyCLEAR
Surface FinishPOLISHED
Ply Quantity1
Environmental ProtectionWEATHER RESISTANT
Overall Thickness0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
9340-00-141-7947 INTERCHANGEABLE
Window,observation
6105-00-252-00381908903-3 INTERCHANGEABLE
Motor-Tachometer Generator
Honeywell International Inc. Dba Honeywell International
9340-00-261-5712 INTERCHANGEABLE
Window,observation
9340-00-526-5185200103DBPC463 INTERCHANGEABLE
Window,observation
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
6680-00-526-518725J671PC27 INTERCHANGEABLE
Glass,liquid Sight Indicator,fla
Northrop Grumman Systems Corporation Div Marine Systems
5355-00-668-7896B311-284 INTERCHANGEABLE
Window,dial
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
4720-00-734-0097 INTERCHANGEABLE
Hose,preformed
6105-01-568-447288520 INTERCHANGEABLE
Motor,alternating Current
Tuthill Corporation Dba Tuthill Pump Group
5120-01-572-0784J88520 INTERCHANGEABLE
Screwdriver,six Point Tip
The Stanley Works Dba Stanley Proto
5995-01-622-131781-5993-001 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Radiall Usa Inc
Cross-Reference Index
Part NumberManufacturer
MILG2697TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
88520 Kaydon Custom Filtration Corporation (USA)
W5329769PC75 General Electric Company (USA)
Related Parts
9340-00-141-7947INTERCHANGEABLE
WINDOW,OBSERVATION
6105-00-252-0038INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
1908903-3
9340-00-261-5712INTERCHANGEABLE
WINDOW,OBSERVATION
9340-00-526-5185INTERCHANGEABLE
WINDOW,OBSERVATION
200103DBPC463
6680-00-526-5187INTERCHANGEABLE
GLASS,LIQUID SIGHT INDICATOR,FLA
25J671PC27
5355-00-668-7896INTERCHANGEABLE
WINDOW,DIAL
B311-284
4720-00-734-0097INTERCHANGEABLE
HOSE,PREFORMED
6105-01-568-4472INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
88520
5120-01-572-0784INTERCHANGEABLE
SCREWDRIVER,SIX POINT TIP
J88520
5995-01-622-1317INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
81-5993-001
6550-01-662-3013INTERCHANGEABLE
TRANSFER MEMBRANE

Frequently Asked Questions

What is NSN 9340-00-290-7134?

NSN 9340-00-290-7134 is a Window,observation, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 9340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9340-00-290-7134?

NSN 9340-00-290-7134 has 3 cross-referenced part numbers: MILG2697TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 88520 (Kaydon Custom Filtration Corporation), W5329769PC75 (General Electric Company).

What NSN replaces 9340-00-290-7134?

There are 11 known substitutes for 9340-00-290-7134: 9340-00-141-7947, 6105-00-252-0038, 9340-00-261-5712 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILG2697TYPEA?

Key specifications for MILG2697TYPEA: Material: GLASS; Style Designator: CIRCULAR; Material Document and Classification: DD-G-451,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE; Nondefinitive Spec/std Data: A TYPE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9340-00-290-7134 still in active supply?

NSN 9340-00-290-7134 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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