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1240-00-159-0537

Optical Element Retaining Ring

1240001590537 001590537 655045 231650

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see RETAINER, OPTICAL ELEMENT. Excludes CELL, OPTICAL ELEMENT; NUT, PLAIN KNURLED; NUT, PLAIN ROUND; and RING, RETAINING. View more Optical Element Retaining Ring

1240-00-159-0537 RING,RETAINING,OPTICAL ELEMENT 1240001590537 001590537

Managed by United States
NSN Created on 1 Jan 1963
Data Last Changed
May 2023
NATO Update Count
28
NATO Data Quality
1240-00-159-0537 RING,RETAINING,OPTICAL ELEMENT 1240001590537 001590537 1/1
NSN 1240-00-159-0537 (Generic Image) 1/1

1240-00-159-0537 Stock and Availability Marketplace 1240-00-159-0537

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655045 231650 A cylindrical item having an internally flanged diameter designed to retain a lens or
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1240-00-159-0537 Demil Restrictions 1240-00-159-0537

DEMIL: A | DEMILI: | CRITICALITY: X | HMIC: N | PMIC: A | EDC: | ADPEC: 0

1240-00-159-0537 is a Optical Element Retaining Ring that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.

1240-00-159-0537 HTS and ScheduleB Import and Export 1240-00-159-0537

1240-00-159-0537 End Users End Users 1240-00-159-0537

Spain (YB01)
Effective Date:
1 Apr 1991
Thailand (YY01)
Effective Date:
1 Feb 2015
Turkey (ZW01)
Effective Date:
1 Nov 1998

1240-00-159-0537 Manufacturers Approved Sources 1240-00-159-0537

1240-00-159-0537 Technical Data Datasheet 1240-00-159-0537

Characteristic
Specifications
FIIG
T271-J
Aperture Diameter [ABVL]
2.016 Inches Nominal
Groove Diameter [AAVZ]
2.251 Inches Nominal
Groove Location [BMTY]
Inside Face Of Flange
End Item Identification [AGAV]
Gun Sight Mk29
Material [MATT]
Steel Corrosion Resisting
Outside Diameter [ABKV]
2.500 Inches Nominal
Inner Groove Width [ADWA]
0.0235 Inches Nominal
Internal Flange Thickness [BMTL]
0.125 Inches Nominal
Overall Length [ABHP]
0.656 Inches Nominal

1240-00-159-0537 Related Items NATO Stock Numbers Related to 1240-00-159-0537

1240-00-159-0537 Freight Data Freight Information 1240-00-159-0537

1240-00-159-0537 has freight characteristics.. 1240-00-159-0537 has a variance between NMFC and UFC when transported by rail and the description should be consulted.

1240-00-159-0537 Packaging Data Packaging Data 1240-00-159-0537

Responsible Activity
Packaging Data Source
Primary Inventory Control Activity (PICA)
--

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation
--
--
--
0.25 lb or less, one dimension 2" or less, other dimensions less than 24"
85 to 110G
No Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying
--
--
--
--
--
Any Suitable Process
Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking
No Requirement
No Requirement
PPP-C-795, Cellular Plastic Film Cushioning; or A-A-3129, Open Cell Plastic Cushioning; or PPP-C-1797, Polypropylene Foam Cushioning; or A-A-59136, Polyethylene Foam Cushioning
--
--
No special marking

Intermediate Pack Level

Quantity of Unit Packs
Container
PPP-B-566, PPP-B-676, or ASTM-D5118, Folding, Setup or Fiberboard Box