1240-00-765-3188

Find complete technical information, availability, and procurement data for: 1240-00-765-3188

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1240-00-765-3188
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-765-3188
Item Name Code
21859
Assigment Date
01/01/1962 (64 years ago)

An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes:reticle, optical instrument.

2b and 2a thread class, 1.436 inches nominal overall diameter, 0.156 inches and 0.124 inches thread length, 1.530 inches nominal overall height, 1-1/4 in.-24 and 1-3/8 in.-32 thread size

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2b and 2a
Thread Length
0.156 inches and 0.124 inches
Overall Height
1.530 inches nominal
Thread Size
1-1/4 in.-24 and 1-3/8 in.-32
Overall Diameter
1.436 inches nominal
Screw Thread Series Designator
uns
Thread Location
internal and external
Eccentric Construction
not provided
Material
aluminum alloy 2024
Fsc Application Data
periscope,m15a1,integrated with fire control equipment

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
7653188 Optical Element Cell

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 1240-00-765-3188?
The FSCG of the NSN 1240-00-765-3188 is 1240
Does the NSN 1240-00-765-3188 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-765-3188 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 1240-00-765-3188 contain precious materials?
Precious metal content is unknown
Does NSN 1240-00-765-3188 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 1240-00-765-3188 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962

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