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Optical Element Cell NSN 1240-00-321-8551

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 1240-00-321-8551 NSN: 1240-00-321-8551

Features and Characteristics

Thread Class
2b and 2a
Thread Direction
Right-hand and right-hand
Overall Length
1.344 inches
Thread Size
7/8-32 and 1 1/16-28
Overall Diameter
2.312 inches
Screw Thread Series Designator
Un and un
Thread Location
Internal and external
Eccentric Construction
Not provided
Chamfer Location
Larger diameter end
Chamfer Size
0.375 in. By 15 deg
Material
Aluminum alloy, qq-a-225/6, alloy 2024, t351 or aluminum alloy, qq-a-225/8, t651
Material
Aluminum alloy 2024 or aluminum alloy 6061
Surface Treatment
Anodized black
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
003218551
NSN
1240003218551

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
11744822
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 1240-00-321-8551
What are the manufacturers of nsn 1240003218551?
Does this nsn 1240003218551 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240003218551
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 1240003218551 contain any precious metals?
No precious metal content.
Does nsn 1240003218551 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240003218551?
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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