5945-01-499-8728 ARMATURE,RELAY Index 5975-01-499-8730 TRAY,MOUNTING,ELECTRONIC EQUIPME

National Stock Number:
3940-01-499-8729

Federal Supply Class:
3940

National Item Identification Number:
014998729

Description:
BLOCK,TACKLE

Detail:
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.


Manufacturer Information:
10803875535THE CROSBY GROUP LLC
1237867219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
12378672-004076M6AMZ ALABAMA INC.
12378672-0040FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP
12378672-00419207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
802604675535THE CROSBY GROUP LLC
M802604675535THE CROSBY GROUP LLC


Techincal Specification:
ANTITOPPLING DEVICENOT INCLUDED
ATTACHMENT STYLEFLATTED LOOSE SWIVEL SAFETY SNAP HOOK
BEARING TYPEPLAIN
BLOCK TYPESNATCH
LOAD RATING5000.0 POUNDS MAXIMUM
LOCKING STYLEDROP LINK
MATERIALCOPPER ALLOY BEARING
MATERIALSTEEL OVERALL
MAXIMUM TACKLE DIAMETER ACCOMMODATED0.375 MILLIMETERS
PART NAME ASSIGNED BY CONTROLLING AGENCYSNATCH BLOCK
SHELL LENGTH5.490 INCHES MINIMUM AND 6.250 INCHES MAXIMUM
SHEAVE OUTSIDE DIAMETER3.000 INCHES NOMINAL
SHEAVE QUANTITY1
SPECIAL FEATURESNHA: 12486596 AND 12378420 // FORGED ALLOY HEAT TREATED HOOKS; FORGED STEEL SWIVEL TEES, YOKES; PRESSUE LUBE FITTINGS
STYLE DESIGNATORPULLEY PATTERN
SUPPLEMENTARY FEATURESSAFE WORKING LOAD: 2 TONS // PROOF TEST LOAD: 2.5 TONS // ULTIMATE STRENGTH LOAD: 4 TONS
TACKLE ACCOMMODATED TYPEWIRE ROPE
TACKLE LOCKING DEVICENOT INCLUDED


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