NSN 3940-00-764-4631

Part Details | TACKLE BLOCK

3940-00-764-4631 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.

Alternate Parts: GGGB500, 3940-00-764-4631, 00-764-4631, 3940007644631, 007644631

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
39APR 14, 197200-764-463106117 ( BLOCK, TACKLE )
REFERENCE DRAWINGS & PICTURES

SAFETY LOCKING

BLOCK,TACKLE | 3940-00-764-4631, 007644631

OBLONG SWIVEL EYE AND SHACKLE

BLOCK,TACKLE | 3940-00-764-4631, 007644631

OVAL PATTERN

BLOCK,TACKLE | 3940-00-764-4631, 007644631
Cross Reference | NSN 3940-00-764-4631
Part Number Cage Code Manufacturer
GGGB50081348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
Technical Data | NSN 3940-00-764-4631
Characteristic Specifications
STYLE DESIGNATOR OVAL PATTERN
SHELL LENGTH16.000 INCHES NOMINAL
SHEAVE OUTSIDE DIAMETER12.000 INCHES NOMINAL
CENTER PIN DIAMETER1.125 INCHES NOMINAL
BLOCK TYPE SNATCH
LOCKING STYLE SAFETY LOCKING
MATERIAL AND LOCATION STEEL OVERALL
SURFACE TREATMENT AND LOCATION ZINC, ELECTROLYTIC OVERALL
SHEAVE QUANTITY1
BEARING TYPE PLAIN
SHEAVE BEARING LUBRICATION METHOD SELF-LUBRICATED
TACKLE ACCOMMODATED TYPE WIRE ROPE
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.750 INCHES
TACKLE LOCKING DEVICE NOT INCLUDED
ANTITOPPLING DEVICE NOT INCLUDED
ATTACHMENT STYLE9 OBLONG SWIVEL EYE AND SHACKLE
MAXIMUM LOAD RATING1000.0 POUNDS
TEST DATA DOCUMENT81348-GGG-B-500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
NONDEFINITIVE SPEC/STD DATAB GRADE AND 1 STYLE