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Optical Element Retaining Ring NSN 1240-00-382-0900

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 1240-00-382-0900 NSN: 1240-00-382-0900

Features and Characteristics

Thread Class
3b
Thread Pitch Diameters
+1.4037 to 1.4172 inches
Thread Direction
Right-hand
Thread Length
0.150 inches
Overall Length
0.214 inches
Outside Diameter
1.818 inches
Thread Size
1 7/16-32
Aperture Diameter
1.220 inches
End Application
Telescope mk67
Screw Thread Series Designator
Uns
Thread Location
Internal
Internal Flange Thickness
0.040 inches
Knurled Periphery
Not provided
Material
Brass
Material
Copper alloy
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
003820900
NSN
1240003820900

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
217472PC9
Cage Code:
10001
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 1240-00-382-0900
What are the manufacturers of nsn 1240003820900?
Does this nsn 1240003820900 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240003820900
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 1240003820900 contain any precious metals?
No precious metal content.
Does nsn 1240003820900 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240003820900?
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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