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Optical Element Retainer NSN 1240-01-188-8029

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 1240-01-188-8029 NSN: 1240-01-188-8029

Features and Characteristics

Hole Diameter
0.625 inches
Width
0.047 inches
Overall Length
0.125 inches
Hole Or Slot Quantity
1
Thread Size
Aa0.875
Depth
0.047 inches
Cubic Measure
0.0957 cubic inches
Drive Type
Slotted
Guide Design
Thread relief
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Special Features
Material is per mil-t-8506, 304, annealed, or qq-s-764, type 303 or 303se, cond. A; thread char. Are 64uns-2a
Material
Steel, corrosion resisting
Material
Stainless steel
Surface Treatment
Oxide
Surface Treatment
Black oxide, mil-c-13924, class 4
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
011888029
NSN
1240011888029

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8615982
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 1240-01-188-8029
What are the manufacturers of nsn 1240011888029?
Does this nsn 1240011888029 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240011888029
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 1240011888029 contain any precious metals?
No precious metal content.
Does nsn 1240011888029 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240011888029?
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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