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Optical Element Retaining Ring NSN 5855-01-039-2842

Item Description

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

NSN 5855-01-039-2842 NSN: 5855-01-039-2842

Features and Characteristics

Groove Diameter
Between 1.460 inches and 1.480 inches
Overall Length
Between 0.260 inches and 0.280 inches
Outside Diameter
Between 3.260 inches and 3.280 inches
Aperture Diameter
Between 2.562 inches and 2.565 inches
Inner Groove Width
Between 0.540 inches and 0.560 inches
End Application
5855-00-906-0994 night vision sightunit an/tvs-4
Internal Flange Thickness
0.104 inches
Knurled Periphery
Not provided
Material
Aluminum alloy, 6061
Material
Aluminum alloy 6061
Surface Treatment
Dull black
FSC
5855 Emitted And Reflected Radiation Night Vision Equipment
NIIN
010392842
NSN
5855010392842

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SM-D-850427-1
Cage Code:
04YE2
Status:
A
MSDS:
Part Number:
SM-D-850427
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 5855-01-039-2842
What are the manufacturers of nsn 5855010392842?
Does this nsn 5855010392842 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5855010392842
A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. it may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. for externally threaded items, see retainer, optical element. excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.
Does nsn 5855010392842 contain any precious metals?
No precious metal content.
Does nsn 5855010392842 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5855010392842?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22585
FIIG:
T271-J
App. Key:
JC
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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