8566978

View detailed technical data, stock status, and sourcing information for: 8566978

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8566978
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-973-1411
Item Name Code
21868
Assigment Date
10/07/1966 (59 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

7 scale division quantity, black inscription color, 0.354 inches minimum and 0.364 inches maximum overall height, 2.370 inches minimum and 2.375 inches maximum overall outside diameter, 1.750 inches minimum and 1.755 inches maximum inside diameter

Product Characteristics

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

Inside Diameter
1.750 inches minimum and 1.755 inches maximum
Overall Height
0.354 inches minimum and 0.364 inches maximum
Scale Division Quantity
7
Overall Outside Diameter
2.370 inches minimum and 2.375 inches maximum
Inscription Color
black
Mounting Configuration
3 setscrews
Scale Unit Of Measure Inscription
3,2,1,minus sign/in symbol fo rm/,0,plus sign/in symbol form/,1,2,3
Material
aluminum alloy 2024
Material Document And Classification
qq-a-200/3, alloy 2024, t4 fed spec single material response
Surface Treatment
anodize
Fsc Application Data
periscope,m32,m35,and m36,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
8566978 Diopter Scale

FAQs

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

What is the FSCG of the NSN 1240-00-973-1411?
The FSCG of the NSN 1240-00-973-1411 is 1240
Does the NSN 1240-00-973-1411 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-973-1411 require demilitarization?
"usml or ccl military items - demil required. Remove and demilitarize installed key point(s) items as demil code "d". (note 4)."
Does NSN 1240-00-973-1411 contain precious materials?
Precious metal content is unknown
Does NSN 1240-00-973-1411 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 1240-00-973-1411 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Fri, Oct 7, 1966

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