PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-387Eyeshield,optical Instrument

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 1240-00-166-7782 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-00-166-7782 — this item is cataloged by the U.S. Government under National Stock Number 1240-00-166-7782. Primary manufacturer part number: M-387.
Features
  • Eyeshield,optical Instrument — FSC 1240
  • Material: RUBBER
  • 9 verified cross-references
  • Primary manufacturer: Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Applications
  • Applications requiring Rubber construction
General Description

The Eyeshield,optical Instrument, cataloged under National Stock Number 1240-00-166-7782, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN1240-00-166-7782
Primary Part NumberM-387
Item NameEyeshield,optical Instrument
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
MaterialRUBBER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6220-00-146-158190153 INTERCHANGEABLE
Lens,light
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
5805-01-019-6630103-232-799 INTERCHANGEABLE
Power Unit
Lucent Technologies Inc Corporate Headquarters
4820-01-038-7758143795 INTERCHANGEABLE
Valve,angle
Pentair Filtration Solutions, Llc
5310-01-122-9056265A INTERCHANGEABLE
Nut,plain,hexagon
Evans Tempcon Michigan, Llc
5330-01-228-6173570700 INTERCHANGEABLE
Gasket
R F Products, Inc
Cross-Reference Index
Part NumberManufacturer
M-387 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
M-253040-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
253040 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
2ZA950-387 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
M387 Herley Chicago Dba Stewart Warner Electronics (USA)
265A Pierce-Roberts Rubber Company Dba Pierce Roberts Rubber (USA)
253040-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
570700 Stewart-Warner Corporation (USA)
563431-1 Stewart-Warner Corporation (USA)
Related Parts
6220-00-146-1581INTERCHANGEABLE
LENS,LIGHT
90153
5805-01-019-6630INTERCHANGEABLE
POWER UNIT
103-232-799
4820-01-038-7758INTERCHANGEABLE
VALVE,ANGLE
143795
5310-01-122-9056INTERCHANGEABLE
NUT,PLAIN,HEXAGON
265A
5330-01-228-6173INTERCHANGEABLE
GASKET
570700

Frequently Asked Questions

What is NSN 1240-00-166-7782?

NSN 1240-00-166-7782 is a Eyeshield,optical Instrument, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 1240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1240-00-166-7782?

NSN 1240-00-166-7782 has 9 cross-referenced part numbers: M-387 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), M-253040-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 253040 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 2ZA950-387 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), M387 (Herley Chicago Dba Stewart Warner Electronics) and 4 more.

What NSN replaces 1240-00-166-7782?

There are 5 known substitutes for 1240-00-166-7782: 6220-00-146-1581, 5805-01-019-6630, 4820-01-038-7758 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M-387?

Key specifications for M-387: Overall Length: 3.281 INCHES NOMINAL IN; Material: RUBBER. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 1240-00-166-7782 still in active supply?

NSN 1240-00-166-7782 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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