Product Details | TACKLE BLOCK

3940-00-926-3712 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: GGGB490, GGG-B-490, 3940-00-926-3712, 00-926-3712, 3940009263712, 009263712

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

Supply Group (FSG) NSN Assign. NIIN
39 26 AUG 1966 00-926-3712

Drawings & Photos | NSN 3940-00-926-3712


Demand History | NSN 3940-00-926-3712

Part Number Request Date QTY Origin
3940-00-926-3712 2017-03-67 12 DIBBS
3940-00-926-3712 2016-08-237 12 DIBBS
3940-00-926-3712 2014-11-310 14 DIBBS
3940-00-926-3712 2014-08-215 2 DIBBS

Cross Reference | NSN 3940-00-926-3712

Part Number Cage Code Manufacturer
GGG-B-490 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
GGGB490 D9182 BOSCH REXROTH GMBH LOHMANN +STOLTERFOHT

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Technical Data | NSN 3940-00-926-3712

Characteristic Specifications
STYLE DESIGNATOR 3 ROUND PATTERN
SHELL LENGTH 14.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER 9.500 INCHES NOMINAL
CENTER PIN DIAMETER 0.875 INCHES NOMINAL
BLOCK TYPE REGULAR
MATERIAL AND LOCATION BRONZE BEARING STEEL CENTER PIN IRON SHEAVE AND STEEL SHEAVE IRON SHELL
SURFACE TREATMENT AND LOCATION ZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY 1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE FIBROUS ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED 1.759 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
BECKET TYPE THIMBLE
BECKET QUANTITY 1
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE 16 UPSET SCREW PIN ANCHOR SHACKLE
MAXIMUM LOAD RATING 9600.0 POUNDS
SPECIAL FEATURES SHEAVE THICKNESS AT RIM MIN 1.875 IN.
NONDEFINITIVE SPEC/STD DATA 2 TYPE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE GGG-B-490

Restrictions/Controls & Freight Information | NSN 3940-00-926-3712

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.
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 576 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 3940-00-926-3712

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative