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Optical Element Retaining Ring NSN 5855-00-167-7893

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 5855-00-167-7893 NSN: 5855-00-167-7893

Features and Characteristics

Thread Class
2a
Thread Pitch Diameters
+1.3522 to 1.3559 inches
Thread Direction
Right-hand
Thread Length
0.060 inches
Overall Length
Between 0.266 inches and 0.282 inches
Outside Diameter
1.375 inches
Thread Size
1 3/8-36
Aperture Diameter
Between 0.985 inches and 1.015 inches
End Application
Night vision sight an/pvs-3
Screw Thread Series Designator
Uns
Thread Location
External
Internal Flange Thickness
Between 0.050 inches and 0.065 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
001677893
NSN
5855001677893

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
SC-C-635127
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 5855-00-167-7893
What are the manufacturers of nsn 5855001677893?
Does this nsn 5855001677893 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5855001677893
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 5855001677893 contain any precious metals?
No precious metal content.
Does nsn 5855001677893 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5855001677893?
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
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