1240-01-082-3500

Find complete technical information, availability, and procurement data for: 1240-01-082-3500

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1240-01-082-3500
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-01-082-3500
Item Name Code
21859
Assigment Date
08/31/1979 (46 years ago)

An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.

1.780 inches minimum and 1.840 inches maximum overall length, right-hand thread direction, 1.250 inches and 0.164 inches thread length, +1.2297 to 1.2346 inches thread pitch diameters, 2b thread class

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
Thread Pitch Diameters
+1.2297 to 1.2346 inches
Thread Direction
right-hand
Thread Length
1.250 inches and 0.164 inches
Overall Length
1.780 inches minimum and 1.840 inches maximum
Overall Width
1.497 inches minimum and 1.499 inches maximum
Thread Size
1 1/4-32 and 8-32
Overall Diameter
1.220 inches minimum and 1.280 inches maximum
Screw Thread Series Designator
uns and unc
Thread Location
internal
Eccentric Construction
not provided
Chamfer Location
threaded end
Chamfer Size
0.030 in. by 45 deg
Material
aluminum alloy 2011 and aluminum alloy 2024 and aluminum alloy 6061

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
12266923 Optical Element Cell

FAQs

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

What is the FSCG of the NSN 1240-01-082-3500?
The FSCG of the NSN 1240-01-082-3500 is 1240
Does the NSN 1240-01-082-3500 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-01-082-3500 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 1240-01-082-3500 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-01-082-3500 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 1240-01-082-3500 was assigned to the Federal Catalog?
It was assigned 46 years ago, on Fri, Aug 31, 1979

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