PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26187Case,optical Instrument

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 1240-01-542-7084 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-542-7084 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-542-7084. Primary manufacturer part number: 26187.
Features
  • Case,optical Instrument — FSC 1240
  • 1 verified cross-reference
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Case,optical Instrument, cataloged under National Stock Number 1240-01-542-7084, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCase,optical Instrument
FSC / FSG1240 — No Item Name Available (FSG 12)
ManufacturersCharles Reed Knight Jr Dba Knight's Armament Company (CAGE 1S002)
Technical Specifications
ParameterValue
NSN1240-01-542-7084
Primary Part Number26187
Item NameCase,optical Instrument
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-121-762926-187 INTERCHANGEABLE
Washer,shouldered
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5120-00-277-2323 INTERCHANGEABLE
Wrench,open End
5330-00-429-068022F37 INTERCHANGEABLE
Gasket
Oshkosh Defense Llc
5355-00-821-637990-1LK2G INTERCHANGEABLE
Knob
Raytheon Company Div Corp
5985-01-224-586511442257-1 INTERCHANGEABLE
Coupler,directional
Us Army Aviation and Missile Command
5998-01-344-306026187 INTERCHANGEABLE
Circuit Card Assembly
Clayton Manufacturing Company
7220-01-411-2979000-48011-26187-4 INTERCHANGEABLE
Mat,floor
3m Company
Cross-Reference Index
Part NumberManufacturer
26187 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
5310-00-121-7629INTERCHANGEABLE
WASHER,SHOULDERED
26-187
5120-00-277-2323INTERCHANGEABLE
WRENCH,OPEN END
5330-00-429-0680INTERCHANGEABLE
GASKET
22F37
5355-00-821-6379INTERCHANGEABLE
KNOB
90-1LK2G
5985-01-224-5865INTERCHANGEABLE
COUPLER,DIRECTIONAL
11442257-1
5998-01-344-3060INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
26187
7220-01-411-2979INTERCHANGEABLE
MAT,FLOOR
000-48011-26187-4

Frequently Asked Questions

What is NSN 1240-01-542-7084?

NSN 1240-01-542-7084 is a Case,optical Instrument, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-542-7084?

NSN 1240-01-542-7084 has 1 cross-referenced part number: 26187 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 1240-01-542-7084?

There are 7 known substitutes for 1240-01-542-7084: 5310-00-121-7629, 5120-00-277-2323, 5330-00-429-0680 and 4 more. Verify interchangeability with system specifications before substitution.

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