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Optical Instrument Cell Assembly NSN 1240-00-042-5360

Item Description

An item consisting of a cell, optical element in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. May include retaining rings, spacers, and/or separators. For items with focusing facilities and/or a diopter scale, see eyepiece assembly, optical instrument.

NSN 1240-00-042-5360 NSN: 1240-00-042-5360

Features and Characteristics

Thread Class
2a and 2b
Thread Pitch Diameters
+2.0996 to 2.1036 inches and +1.9240 to 1.9280 inches
Thread Direction
Right-hand and right-hand
Thread Length
0.375 inches and 0.141 inches
Overall Length
Between 0.995 inches and 1.000 inches
Thread Size
2 1/8 - 32 and 1 15/16 - 48
Overall Diameter
2.125 inches
Screw Thread Series Designator
Uns and uns
Thread Location
External and internal
Eccentric Construction
Not provided
Cell Controlling Agency
Frankford arsenal
Cell Identifying Number
10539843 part no.
Optical Element Quantity
1 and 1
Optical Element Type
Compound lens and single lens
Optical Element Controlling Agency
Frankford arsenal and frankford arsenal
Optical Element Identifying Number
10539776 part no. And 10539777 part no.
Material
Aluminum alloy
Fsc Application Data
Periscope, tank
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
000425360
NSN
1240000425360

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
10540111
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 1240-00-042-5360
What are the manufacturers of nsn 1240000425360?
Does this nsn 1240000425360 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240000425360
An item consisting of a cell, optical element in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. may include retaining rings, spacers, and/or separators. for items with focusing facilities and/or a diopter scale, see eyepiece assembly, optical instrument.
Does nsn 1240000425360 contain any precious metals?
No precious metal content.
Does nsn 1240000425360 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240000425360?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22197
FIIG:
T271-J
App. Key:
JA
Cond. Code:
2
Status:
A

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