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Optical Element Retainer NSN 1240-00-853-3577

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 1240-00-853-3577 NSN: 1240-00-853-3577

Features and Characteristics

Hole Diameter
4.250 inches
Overall Length
0.187 inches
Recess Angle In Deg
45.0
Recess Depth
0.040 inches
Setscrew Notch
Provided
Material
Aluminum
Material
Aluminum
Style Designator
Recessed
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
008533577
NSN
1240008533577

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
6819-157
Cage Code:
80294
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 1240-00-853-3577
What are the manufacturers of nsn 1240008533577?
Does this nsn 1240008533577 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240008533577
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 1240008533577 contain any precious metals?
No precious metal content.
Does nsn 1240008533577 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240008533577?
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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