PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

647-4Window,observation

Clark-Reliance Llc Dba Jacoby-Tarbox · NSN 9340-01-226-2660 · FSC 9340 · No Item Name Available
Verified by PartsTable
NSN 9340-01-226-2660 — this item is cataloged by the U.S. Government under National Stock Number 9340-01-226-2660. Primary manufacturer part number: 647-4.
Features
  • Window,observation — FSC 9340
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 1 verified cross-reference
  • Primary manufacturer: Clark-Reliance Llc Dba Jacoby-Tarbox
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Window,observation, cataloged under National Stock Number 9340-01-226-2660, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Clark-Reliance Llc Dba Jacoby-Tarbox. Government technical data includes 2 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9340-01-226-2660
Primary Part Number647-4
Item NameWindow,observation
FSC / FSG9340 / 93 — No Item Name Available
ManufacturerClark-Reliance Llc Dba Jacoby-Tarbox
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4820-00-277-1713 INTERCHANGEABLE
Valve,angle
5360-00-291-5443 INTERCHANGEABLE
Spring,helical,compression
5360-01-150-9193 INTERCHANGEABLE
Spring,switch
2530-01-458-1267HR832 INTERCHANGEABLE
Hub,wheel,vehicular
Kelsey-Hayes Co Gunite Div
2530-01-458-1273HR821K1 INTERCHANGEABLE
Hub,wheel,vehicular
Kelsey-Hayes Co Gunite Div
4240-01-506-9884 INTERCHANGEABLE
Assembly,harness
Cross-Reference Index
Part NumberManufacturer
647-4 Clark-Reliance Llc Dba Jacoby-Tarbox (USA)
Related Parts
4820-00-277-1713INTERCHANGEABLE
VALVE,ANGLE
5360-00-291-5443INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5360-01-150-9193INTERCHANGEABLE
SPRING,SWITCH
2530-01-458-1267INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
HR832
2530-01-458-1273INTERCHANGEABLE
HUB,WHEEL,VEHICULAR
HR821K1
4240-01-506-9884INTERCHANGEABLE
ASSEMBLY,HARNESS

Frequently Asked Questions

What is NSN 9340-01-226-2660?

NSN 9340-01-226-2660 is a Window,observation, manufactured by Clark-Reliance Llc Dba Jacoby-Tarbox, classified under FSC 9340 (No Item Name Available). Status: active.

What are the part numbers for NSN 9340-01-226-2660?

NSN 9340-01-226-2660 has 1 cross-referenced part number: 647-4 (Clark-Reliance Llc Dba Jacoby-Tarbox).

What NSN replaces 9340-01-226-2660?

There are 6 known substitutes for 9340-01-226-2660: 4820-00-277-1713, 5360-00-291-5443, 5360-01-150-9193 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 647-4?

Key specifications for 647-4: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 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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