1270-01-171-6931

Find complete technical information, availability, and procurement data for: 1270-01-171-6931

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1270-01-171-6931
Federal Supply Group
Fire Control Equipment
National Stock Number
1270-01-171-6931
Item Name Code
21859
Assigment Date
02/11/1984 (42 years ago)

A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.

+1.4127 to 1.4130 inches thread pitch diameters, 0.340 inches nominal overall length, right-hand thread direction, 2a thread class, 0.320 inches thread length

Product Characteristics

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

Thread Class
2a
Thread Pitch Diameters
+1.4127 to 1.4130 inches
Thread Direction
right-hand
Thread Length
0.320 inches
Overall Length
0.340 inches nominal
Thread Size
1 7/16-28
Overall Diameter
1.438 inches nominal
Screw Thread Series Designator
un
Drive Type
slotted drive on periphery
Thread Location
external
Eccentric Construction
not provided
Chamfer Location
drive end
Chamfer Size
0.020 in.by 45 deg
Element Securing Method
retainer ring
Material
plastic polyphenylene oxide
Material Document And Classification
mil-p-46131,type 3,class 1 mil spec single material response

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
13074828 Optical Element Cell

FAQs

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

What is the FSCG of the NSN 1270-01-171-6931?
The FSCG of the NSN 1270-01-171-6931 is 1270
Does the NSN 1270-01-171-6931 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1270-01-171-6931 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 1270-01-171-6931 contain precious materials?
Item does not contain precious metal.
Does NSN 1270-01-171-6931 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 1270-01-171-6931 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Sat, Feb 11, 1984

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