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Optical Element Retainer NSN 1240-01-026-6660

Item Description

A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. Excludes ring, externally threaded.

NSN 1240-01-026-6660 NSN: 1240-01-026-6660

Features and Characteristics

Hole Diameter
Between 0.675 inches and 0.685 inches
Overall Length
Between 0.140 inches and 0.150 inches
Thread Size
0.875-32
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Material
Aluminum alloy, ww-t-700/3, t3 or aluminum alloy, ww-t-700/6, alloy 6061 or aluminum alloy, qq-a-200/8 or aluminum alloy, qq-a-200/3
Material
Aluminum alloy 2024 or aluminum alloy 6061 or aluminum alloy 6061 or aluminum alloy 6062 or aluminum alloy 2024
Material Specification
Ww-t-700/3, t3 federal specification 1st material response and ww-t-700/6, alloy 6061 federal specification 2nd material response and qq-a-200/8 federal specification 3rd material response and qq-a-200/3 federal specification 4th material response
Style Designator
Recessed
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
010266660
NSN
1240010266660

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11746442
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 1240-01-026-6660
What are the manufacturers of nsn 1240010266660?
Does this nsn 1240010266660 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240010266660
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. it must have drilled holes or slots to facilitate assembly and disassembly. for items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. excludes ring, externally threaded.
Does nsn 1240010266660 contain any precious metals?
No precious metal content.
Does nsn 1240010266660 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240010266660?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22451
FIIG:
T271-K
App. Key:
KA
Cond. Code:
2
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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