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Optical Element Retaining Ring NSN 1240-01-237-0009

Item Description

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

NSN 1240-01-237-0009 NSN: 1240-01-237-0009

Features and Characteristics

Thread Class
2b
Thread Pitch Diameters
+1.1713/+1.1759 inches
Thread Direction
Right-hand
Groove Diameter
1.196 inches
Thread Length
0.125 inches
Overall Length
Between 0.185 inches and 0.195 inches
Outside Diameter
Between 1.390 inches and 1.410 inches
Thread Size
1 3/16-40
Aperture Diameter
Between 0.675 inches and 0.685 inches
Inner Groove Width
Between 0.020 inches and 0.030 inches
Screw Thread Series Designator
Uns
Thread Location
Internal
Internal Flange Thickness
0.0271 inches
Groove Location
Inside end of thread
Knurled Periphery
Not provided
Material
Aluminum alloy, qq-a-200/8, 6061, t6
Material
Aluminum alloy 6061
Surface Treatment
Anodized, mil-a-8625, type 2, class 2
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
012370009
NSN
1240012370009

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
13076422
Cage Code:
04939
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9803200000
  • NAICS: 990000
  • SITC: 93100
  • Description: Military equipments not identified by kind
  • End Use (Code 50060):
    Military apparel and footwear

Q & A

Frequently asked questions for NSN 1240-01-237-0009
What are the manufacturers of nsn 1240012370009?
Does this nsn 1240012370009 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240012370009
A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. it may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. for externally threaded items, see retainer, optical element. excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.
Does nsn 1240012370009 contain any precious metals?
No precious metal content.
Does nsn 1240012370009 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240012370009?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22585
FIIG:
T271-J
App. Key:
JC
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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