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Optical Element Retaining Ring NSN 1240-00-419-9558

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 1240-00-419-9558 NSN: 1240-00-419-9558

Features and Characteristics

Outside Diameter
2.344 inches
Aperture Diameter
1.594 inches
End Application
Periscope
Mounting Configuration
Three holes 0.141 in. Diameter equally spaced on 2.062 in. Diameter circle
Internal Flange Thickness
0.062 inches
Knurled Periphery
Not provided
Material
Aluminum
Material
Aluminum
Surface Treatment
Anodized black
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
004199558
NSN
1240004199558

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11731298
Cage Code:
19200
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 1240-00-419-9558
What are the manufacturers of nsn 1240004199558?
Does this nsn 1240004199558 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240004199558
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 1240004199558 contain any precious metals?
No precious metal content.
Does nsn 1240004199558 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240004199558?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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