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Optical Instrument Cell Assembly NSN 1240-00-698-5344

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 1240-00-698-5344 NSN: 1240-00-698-5344

Features and Characteristics

Thread Pitch Diameters
+1.5996 to 1.6047 inches
Thread Direction
Right-hand
Thread Length
0.110 inches
Overall Length
Between 0.365 inches and 0.385 inches
Thread Size
1.625 in.-32
Overall Diameter
Between 1.680 inches and 1.690 inches
Screw Thread Series Designator
Uns
Thread Location
External
Eccentric Construction
Not provided
Cell Controlling Agency
Frankford arsenal
Cell Identifying Number
7679538 part no.
Optical Element Quantity
1
Optical Element Type
Optical glass window
Optical Element Controlling Agency
Frankford arsenal
Optical Element Identifying Number
7679539 part no.
Material
Aluminum alloy, ww-t-700/3, t3
Material
Aluminum alloy 2024
Material Specification
Ww-t-700/3, t3 federal specification single material response
Supplementary Features
Cell surface treatment, anodized, mil-a-8625, type 2, class 2, black. Chamfer 0.062 in. By 45 degrees opposite thread end. Knurl drive type. Optical element bonded. Two 0.063 in. Diameter holes spaced 180 degrees apart on periphery of knurl end.
Fsc Application Data
Periscope, tank m20 series
FSC
1240 Optical Sighting And Ranging Equipment
NIIN
006985344
NSN
1240006985344

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8242545
Cage Code:
03829
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 1240-00-698-5344
What are the manufacturers of nsn 1240006985344?
Does this nsn 1240006985344 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 1240006985344
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 1240006985344 contain any precious metals?
Precious metal content is unknown.
Does nsn 1240006985344 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 1240006985344?
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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