PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11989Window,observation

Kemp C M Mfg Co Sub of Kemp Co · NSN 9340-00-136-8790 · FSC 9340 · No Item Name Available
Verified by PartsTable
NSN 9340-00-136-8790 — this item is cataloged by the U.S. Government under National Stock Number 9340-00-136-8790. Primary manufacturer part number: 11989.
Features
  • Window,observation — FSC 9340
  • Overall Diameter: 2.250 INCHES NOMINAL IN
  • Material: GLASS
  • Style Designator: CIRCULAR
  • Overall Thickness: 0.312 INCHES NOMINAL IN
  • Material Transparency: CLEAR
  • 1 verified cross-reference
  • Primary manufacturer: Kemp C M Mfg Co Sub of Kemp Co
Applications
  • Applications requiring Glass construction
General Description

The Window,observation, cataloged under National Stock Number 9340-00-136-8790, is classified within Federal Supply Class 9340 (No Item Name Available) of the Nonmetallic Fabricated Materials group. The primary manufacturer of record is Kemp C M Mfg Co Sub of Kemp Co. Government technical data includes 5 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9340-00-136-8790
Primary Part Number11989
Item NameWindow,observation
FSC / FSG9340 / 93 — No Item Name Available
ManufacturerKemp C M Mfg Co Sub of Kemp Co
StatusACTIVE
Overall Diameter2.250 INCHES NOMINAL IN
MaterialGLASS
Style DesignatorCIRCULAR
Overall Thickness0.312 INCHES NOMINAL IN
Material TransparencyCLEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5815-00-356-3359SC-C-69996 INTERCHANGEABLE
Plate,teletypewriter Retractor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2520-00-695-850211989 INTERCHANGEABLE
Propeller Shaft with Universal J
Meritor Heavy Vehicle Systems, Llc
1650-00-723-578611989 INTERCHANGEABLE
Retainer,reducer,va
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5360-00-788-098711989 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5985-00-788-6961 INTERCHANGEABLE
Switch,radio Frequency Transmiss
4820-01-023-6963 INTERCHANGEABLE
Valve,expansion
2530-01-255-5375 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
6625-01-392-279011989 INTERCHANGEABLE
Case,electrical Equipment Cabine
Acterna Llc Dba Jdsu
5920-01-496-803011989 INTERCHANGEABLE
Adapter,fuse
Fibrebond Corp
5915-01-536-4391 INTERCHANGEABLE
Filter,radio Frequency Interfere
Cross-Reference Index
Part NumberManufacturer
11989 PRIMARY Kemp C M Mfg Co Sub of Kemp Co (USA)
Related Parts
5815-00-356-3359INTERCHANGEABLE
PLATE,TELETYPEWRITER RETRACTOR
SC-C-69996
2520-00-695-8502INTERCHANGEABLE
PROPELLER SHAFT WITH UNIVERSAL J
11989
1650-00-723-5786INTERCHANGEABLE
RETAINER,REDUCER,VA
11989
5360-00-788-0987INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11989
5985-00-788-6961INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
4820-01-023-6963INTERCHANGEABLE
VALVE,EXPANSION
2530-01-255-5375INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
6625-01-392-2790INTERCHANGEABLE
CASE,ELECTRICAL EQUIPMENT CABINE
11989
5920-01-496-8030INTERCHANGEABLE
ADAPTER,FUSE
11989
5915-01-536-4391INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE

Frequently Asked Questions

What is NSN 9340-00-136-8790?

NSN 9340-00-136-8790 is a Window,observation, manufactured by Kemp C M Mfg Co Sub of Kemp Co, classified under FSC 9340 (No Item Name Available). Status: active.

What are the part numbers for NSN 9340-00-136-8790?

NSN 9340-00-136-8790 has 1 cross-referenced part number: 11989 (Kemp C M Mfg Co Sub of Kemp Co).

What NSN replaces 9340-00-136-8790?

There are 10 known substitutes for 9340-00-136-8790: 5815-00-356-3359, 2520-00-695-8502, 1650-00-723-5786 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11989?

Key specifications for 11989: Overall Diameter: 2.250 INCHES NOMINAL IN; Material: GLASS; Style Designator: CIRCULAR; Overall Thickness: 0.312 INCHES NOMINAL IN. 5 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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