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Optical Element Retaining Ring NSN 1240-01-076-6672

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 1240-01-076-6672 NSN: 1240-01-076-6672

Features and Characteristics

Thread Class
2a
Thread Pitch Diameters
+2.4741/+2.4784 inches
Thread Direction
Right-hand
Thread Length
2.499 inches
Outside Diameter
Between 2.490 inches and 2.510 inches
Thread Size
3/8-32
Aperture Diameter
Between 2.180 inches and 2.190 inches
Screw Thread Series Designator
Uns
Mounting Configuration
0.081 in.Dia.12 holes equally spaced
Thread Location
External
Internal Flange Thickness
0.315 inches
Knurled Periphery
Not provided
Material
Aluminum alloy 7075-t651 qq-a-250/12
Material
Aluminum alloy 7075-t651 qq-a-250/12
Surface Treatment
Anodized, mil-a-8625, type 2, class 2
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
010766672
NSN
1240010766672

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11780080
Cage Code:
19200
Status:
A
MSDS:
Part Number:
42482-1
Cage Code:
09344
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 1240-01-076-6672
What are the manufacturers of nsn 1240010766672?
Does this nsn 1240010766672 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240010766672
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 1240010766672 contain any precious metals?
No precious metal content.
Does nsn 1240010766672 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240010766672?
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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