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Optical Element Retaining Ring NSN 1240-01-498-2272

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 1240-01-498-2272 NSN: 1240-01-498-2272

Features and Characteristics

Outside Diameter
3.375 inches
End Application
Fc33 eyebox; periscope
Drive Type
Slotted face
Mounting Configuration
4x 0.154 through mounting holes
Internal Flange Thickness
0.780 inches
Special Features
Ring has an enlarged diopter scale range -7.5 to +3.5 and -4 to +2. Inside diameter of ring measures 2.625 in.
Material
Steel, corrosion resisting
Material
Stainless steel
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
014982272
NSN
1240014982272

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
7408677
Cage Code:
53711
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 1240-01-498-2272
What are the manufacturers of nsn 1240014982272?
Does this nsn 1240014982272 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240014982272
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 1240014982272 contain any precious metals?
No precious metal content.
Does nsn 1240014982272 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240014982272?
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
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