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Optical Element Cell NSN 1240-00-210-4381

Item Description

A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.

NSN 1240-00-210-4381 NSN: 1240-00-210-4381

Features and Characteristics

Thread Class
3b
Thread Pitch Diameters
+1.7790 to 1.7922 inches
Thread Direction
Right-hand
Thread Length
0.200 inches
Overall Length
1.385 inches
Thread Size
1 13/16-32
Overall Diameter
1.949 inches
Screw Thread Series Designator
Uns
Thread Location
Internal
Eccentric Construction
Not provided
Chamfer Location
Drive end
Chamfer Size
0.0.5 in. By 45 deg
Material
Brass
Material
Copper alloy
Surface Treatment
Black oxide
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
002104381
NSN
1240002104381

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
944628
Cage Code:
10001
Status:
A
MSDS:
Part Number:
TA3711
Cage Code:
34228
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 1240-00-210-4381
What are the manufacturers of nsn 1240002104381?
Does this nsn 1240002104381 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240002104381
A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.
Does nsn 1240002104381 contain any precious metals?
No precious metal content.
Does nsn 1240002104381 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240002104381?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
21859
FIIG:
T271-J
App. Key:
JB
Cond. Code:
2
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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