5310-00-556-7548 WASHER,FLAT Index 5360-00-556-7557 SPRING,CHAIN TENSIO

National Stock Number:
5365-00-556-7554

Federal Supply Class:
5365

National Item Identification Number:
005567554

Description:
RING,EXTERNALLY THREADED

Detail:
A cylindrically shaped item with a concentric bore and a peripheral thread over its entire length or over a portion thereof. One face is drilled, slotted, knurled, or has projecting lugs for installation and/or removal purposes. Excludes RETAINER, OPTICAL ELEMENT.


Manufacturer Information:
556755419204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
DRIVE TYPESLOTTED FACE
ACCOMMODATION TYPE AND QUANTITY4 SLOTS
ANGLE BETWEEN ACCOMMODATIONS IN DEG90.0
BEVELED THREADNOT INCLUDED
BORE ANNULAR INTERNAL SERRATIONNOT INCLUDED
BORE DIAMETER6.853 INCHES MINIMUM AND 6.855 INCHES MAXIMUM
BORE SHAPESTRAIGHT
CASEHARDENING INDICATORNOT CASEHARDENED
DEPTH0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
OVERALL LENGTH0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM
MATERIAL HARDNESS RATING21.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM
MATERIALSTEEL COMP 1045 AND STEEL COMP 1050 AND STEEL COMP 1137 AND STEEL COMP 1144
SCREW THREAD SERIES DESIGNATORNONSTANDARD
SETSCREW LOCKING NOTCHNOT INCLUDED
WIDTH0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM
SURFACE TREATMENTOXIDE
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH DIAMETERS+7.8780 TO 7.9080 INCHES
THREAD SIZE7.968-4


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