Product Details | TACKLE BLOCK

3940-01-491-0436 A mechanical device, consisting of a pulley(s) or sheave(s) encased in a shell or frame which may be provided with a means such as a hook, eye, strap, screw, etc., by which it may be attached to an object. It is used to change direction of a running rope and/or to gain a mechanical advantage.

Part Alternates: M903268K, M903628K, 571-6580814 ITEM 17, 5716580814ITEM17, 8004297, 3940-01-491-0436, 01-491-0436, 3940014910436, 014910436

Materials Handling Equipment | Blocks, Tackle, Rigging, and Slings

Supply Group (FSG) NSN Assign. NIIN
39 11 OCT 2001 01-491-0436

Drawings & Photos | NSN 3940-01-491-0436


Cross Reference | NSN 3940-01-491-0436

Part Number Cage Code Manufacturer
571-6580814 ITEM 17 53711 NAVAL SEA SYSTEMS COMMAND
8004297 76257 CROSBY GROUP INC THE MCKISSICK PLANT DIV
M903268K D9182 BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT
M903628K 76257 CROSBY GROUP INC THE MCKISSICK PLANT DIV

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Technical Data | NSN 3940-01-491-0436

Characteristic Specifications
STYLE DESIGNATOR 21 HALYARD PATTERN
SHELL LENGTH 12.000 INCHES NOMINAL
BLOCK TYPE SNATCH
LOCKING STYLE 3 DROP LINK
MATERIAL AND LOCATION STEEL OVERALL
SURFACE TREATMENT AND LOCATION GALVANIZED OVERALL
SHEAVE QUANTITY 1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE LOCKING DEVICE NOT INCLUDED
BECKET TYPE OVAL EYE
BECKET QUANTITY 1
ATTACHMENT STYLE 2 OBLONG SWIVEL EYE AND SHACKLE
MAXIMUM LOAD RATING 20000.0 POUNDS
III END ITEM IDENTIFICATION CARGO BOOM

Restrictions/Controls & Freight Information | NSN 3940-01-491-0436

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 127300 PULLEY BLOCKS/TCKLE/SNATCH/FAIRLDRS
Less than car load rating
Less than truck load rating S 60.0
Water commodity Code 793 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
Air Dimension Code Z Shipment is not a consolidation, but does exceed 72 inches in one or more dimensions.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 3940-01-491-0436

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative