ORDER BY PHONE (619) 331-9599      Contact Us      Request Quote
facebook
NationalStockNumber.org

Optical Element Retainer NSN 1240-01-174-5570

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 1240-01-174-5570 NSN: 1240-01-174-5570

Features and Characteristics

Hole Diameter
1.375 inches
Overall Length
0.500 inches
Recess Diameter
1.870 inches
Recess Depth
0.430 inches
Thread Size
Aa2.1562
Cubic Measure
2.32459 cubic inches
Usage Design
Periscope assembly
Guide Design
Thread chamfer
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Special Features
Anodized surface treatment is dyed black
Material
Aluminum alloy, qq-a-225/6, alloy 2024, t4 or aluminum alloy, qq-a-225/6, alloy 2024, t6 or aluminum alloy, qq-a-225/8, alloy 6061, t6 or aluminum alloy, qq-a-200/3, alloy 2024, t4 or aluminum alloy, qq-a-200/8, 6061, t6
Material
Aluminum alloy 2024 or aluminum alloy 2024 or aluminum alloy 6061 or aluminum alloy 2024 or aluminum alloy 6061
Material Specification
Qq-a-225/6, alloy 2024, t4 federal specification 1st material response and qq-a-225/6, alloy 2024, t6 federal specification 2nd material response and qq-a-225/8, alloy 6061, t6 federal specification 3rd material response and qq-a-200/3, alloy 2024, t4 federal specification 4th material response and qq-a-200/8, 6061, t6 federal specification 5th material response
Surface Treatment
Anodize
Surface Treatment
Anodized, mil-a-8625, type 2, class 2
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
011745570
NSN
1240011745570

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11733433
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 1240-01-174-5570
What are the manufacturers of nsn 1240011745570?
Does this nsn 1240011745570 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240011745570
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 1240011745570 contain any precious metals?
No precious metal content.
Does nsn 1240011745570 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240011745570?
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

What do you get when you order from nationalstocknumber.org?

  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
ASA Aviation Suppliers Association Member Logo
NQA AS 9120 Suppliers Logo
ITAR Registered International Traffic in Arms Regulations Logo