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Optical Element Retainer NSN 1240-01-079-3053

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 1240-01-079-3053 NSN: 1240-01-079-3053

Features and Characteristics

Shoulder Diameter
2.000 inches
Shoulder Length
0.281 inches
Hole Diameter
1.890 inches
Width
0.060 inches
Overall Length
0.375 inches
Flange Diameter
2.062 inches
Hole Or Slot Quantity
2
Depth
0.060 inches
End Application
2350-01-136-8738; 2350-01-087-1095m1a1; 1240-01-259-9096 xmi gas
Drive Type
Slotted
Guide Design
Thread chamfer
Internal Annular Serration
Not provided
Setscrew Notch
Provided
Material
Aluminum alloy, qq-a-225/3, alloy 2011, t3 or aluminum alloy, qq-a-225/8, alloy 6061, t6
Material
Aluminum alloy 2011 or aluminum alloy 6061
Style Designator
Shouldered
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
010793053
NSN
1240010793053

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12278948
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 1240-01-079-3053
What are the manufacturers of nsn 1240010793053?
Does this nsn 1240010793053 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240010793053
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 1240010793053 contain any precious metals?
No precious metal content.
Does nsn 1240010793053 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240010793053?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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