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Optical Element Retainer NSN 5855-01-061-6890

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 5855-01-061-6890 NSN: 5855-01-061-6890

Features and Characteristics

Hole Diameter
2.002 inches
Width
0.072 inches
Overall Length
0.190 inches
Hole Or Slot Quantity
2
Recess Angle In Deg
60.0
Recess Depth
0.160 inches
Thread Size
2.312-32
Depth
0.060 inches
Drive Type
Slotted
Drive Facility Angular Spacing In Deg
180.0
Radius From Geometric Axis To Hole Center
1.07965 inches
Guide Design
Thread chamfer
Guide Location
Drive edge
Internal Annular Serration
Not provided
Setscrew Notch
Not provided
Material
Aluminum alloy
Material
Aluminum alloy
Style Designator
Recessed
Surface Treatment
Anodized black
Fsc Application Data
Night vision equip.
FSC
5855 Emitted And Reflected Radiation Night Vision Equipment
NIIN
010616890
NSN
5855010616890

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SM-C-806418
Cage Code:
80063
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9014900000
  • NAICS: 334511
  • SITC: 87412
  • Description: Parts & accessories for direction finding compasses and other navigational instruments and appliances
  • End Use (Code 22220):
    Marine engines, parts

Q & A

Frequently asked questions for NSN 5855-01-061-6890
What are the manufacturers of nsn 5855010616890?
Does this nsn 5855010616890 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5855010616890
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 5855010616890 contain any precious metals?
No precious metal content.
Does nsn 5855010616890 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5855010616890?
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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