Optical Instrument Cell Assembly NSN 1240-00-891-1289

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: 1240-00-891-1289

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

0.657 inches

Overall Length

Between 3.484 inches and 3.515 inches

Thread Size

2.312-32

Overall Diameter

Between 2.734 inches and 2.765 inches

Screw Thread Series Designator

Uns

Accessory Components And Quantity

Retainer 1, spacer 1

Thread Location

Internal

Eccentric Construction

Not provided

Cell Controlling Agency

Frankford arsenal

Cell Identifying Number

10543479 part no.

Optical Element Quantity

1 and 1

Optical Element Type

Single lens and compound lens

Optical Element Controlling Agency

Frankford arsenal

Optical Element Identifying Number

10543454 part no. And 10543459 part no.

Special Features

Chamfer 0.031 in. By 45 degrees both ends. Four 0.062 dia. Holes equally spaced on periphery of larger diameter end. Four 0.062 dia. Holes equally spaced on periphery and centered between ends.

Material

Aluminum alloy

Material

Aluminum alloy

Fsc Application Data

Telescope

FSC

1240 Optical Sighting And Ranging Equipment

NIIN

008911289

NSN

1240008911289

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

10543480

Cage Code:

19200

Status:

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 1240-00-891-1289

What are the manufacturers of nsn 1240008911289?

Does this nsn 1240008911289 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 1240008911289
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 1240008911289 contain any precious metals?
Precious metal content is unknown.

Does nsn 1240008911289 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 1240008911289?
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:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service