Product Details | OPTICAL ELEMENT RETAINING RING

1240-00-210-4395 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.20312400038Optical Sighting and Ranging Equipment58550055Night Vision Equipment, Emitted and Reflected Radiation66500063Optical Instruments, Test Equipment, Components and Accessories

Part Alternates: 1390117, 789PC3, 1240-00-210-4395, 00-210-4395, 1240002104395, 002104395

Fire Control Equipment | Optical Sighting and Ranging Equipment

Supply Group (FSG) NSN Assign. NIIN
12 01 JAN 1963 00-210-4395

Cross Reference | NSN 1240-00-210-4395

Part Number Cage Code Manufacturer
1390117 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
789PC3 02622 AMERICAN OPTICAL CO
789PC3 78039 LEICA INC SURVEYING AND PHOTOGRAMMETRY SYSTEMS

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Technical Data | NSN 1240-00-210-4395

Characteristic Specifications
MATERIAL ALUMINUM ALLOY
SURFACE TREATMENT ANODIZED BLACK
THREAD LOCATION INTERNAL
THREAD LENGTH 0.495 INCHES
THREAD DIRECTION RIGHT-HAND
OVERALL LENGTH 0.759 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
OUTSIDE DIAMETER 1.828 INCHES MINIMUM AND 1.829 INCHES MAXIMUM
INTERNAL FLANGE THICKNESS 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM
MOUNTING CONFIGURATION THREE 0.063 IN. DIA LOCK SCREWS
III END ITEM IDENTIFICATION TELESCOPE

Restrictions/Controls & Freight Information | NSN 1240-00-210-4395

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 194160 WASHER OR GASKETS, IRON OR STEEL,
Less than car load rating
Less than truck load rating U 50.0
Water commodity Code 72D unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity E Engineer supplies, other than those listed under code B.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 1240-00-210-4395

Category Code Description
Cognizance Codes9NNavy-owned stocks of defense electronic material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9EDefense Supply Center Columbus
Columbus, OH 43218
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each