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Optical Element Retaining Ring NSN 1240-00-334-3376

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 1240-00-334-3376 NSN: 1240-00-334-3376

Features and Characteristics

Outside Diameter
2.080 inches
Aperture Diameter
1.500 inches
Mounting Configuration
10 holes 0.120 in. Diameter equally spaced on 1.850 in. Circle
Internal Flange Thickness
0.050 inches
Knurled Periphery
Not provided
Material
Brass
Material
Copper alloy
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
003343376
NSN
1240003343376

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
511716PC5
Cage Code:
07887
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 1240-00-334-3376
What are the manufacturers of nsn 1240003343376?
Does this nsn 1240003343376 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240003343376
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 1240003343376 contain any precious metals?
No precious metal content.
Does nsn 1240003343376 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240003343376?
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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